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FH: 00470032 Peltigera polydactyla (Necker) Hoffmann USA: New Hampshire Mt. Monadnock: [no additional data] C. W. Swan 1883
Aceraceae
NEBC: 00772456 Acer negundo Linnaeus USA: Massachusetts Boston: Roxbury C. W. Swan 1893
Alismataceae
NEBC: 01032394 Echinodorus tenellus (Martius) Buchenau USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1884-8-24
GH: 01080750 Sagittaria montevidensis spongiosa (Engelmann) Bogin USA: Maine Kennebunk: Kennebunk C. W. Swan 1859
Alliaceae
NEBC: 00573071 Allium canadense Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-7-13
Amaranthaceae
NEBC: 00614958 Amaranthus hybridus Linnaeus USA: Massachusetts Malden: Malden C. W. Swan 1888-9-14
NEBC: 00614999 Amaranthus hybridus Linnaeus USA: Connecticut Preston: Preston C. W. Swan 1887-8-21
NEBC: 00592039 Amaranthus spinosus Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1883-8-1
NEBC: 00592054 Amaranthus tuberculatus (Moquin-Tandon) Sauer USA: Massachusetts Lowell: Lowell, Centralville C. W. Swan 1885-8-24
Amblystegiaceae
NEBC: 00514137 Campylium hispidulum (Bridel) Mitten USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1888-8-28
Anacardiaceae
NEBC: 00752600 Rhus typhina Linnaeus USA: Massachusetts Chelmsford: Chelmsford, Robbins Hill C. W. Swan 1883-8-7
Apiaceae
NEBC: 00483226 Angelica atropurpurea Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-7-11
NEBC: 00483228 Angelica atropurpurea Linnaeus USA: Massachusetts Concord: Concord, near Acton C. W. Swan 1889-7-14
NEBC: 00483229 Angelica atropurpurea Linnaeus USA: Massachusetts Concord: near Acton C. W. Swan 1889-7-14
NEBC: 00750819 Angelica venenosa (Greenway) Fernald USA: Connecticut Warren: Warren C. W. Swan 1887
NEBC: 01050859 Cicuta maculata Linnaeus USA: Massachusetts Chelmsford: Chelmsford, Canal C. W. Swan 1882-8-19
NEBC: 01036020 Coelopleurum lucidum (Linnaeus) Fernald USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-8-5
NEBC: 01051594 Hydrocotyle umbellata Michaux USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan 1886-8-30
NEBC: 01024214 Hydrocotyle umbellata Michaux USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan 1886-8-30
NEBC: 01024215 Hydrocotyle umbellata Michaux USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan 1886-8-30
NEBC: 01051748 Ligusticum scoticum Linnaeus USA: Massachusetts Nahant: Nahant C. W. Swan 1886-8-10
NEBC: 00415946 Osmorhiza longistylis (Torrey) de Candolle USA: Massachusetts Belmont: Beaver Brook Reserv. Waverly C. W. Swan 1894-6-26
NEBC: 01009551 Osmorhiza longistylis (Torrey) de Candolle USA: Massachusetts Lexington: Lexington C. W. Swan 1890-5-24
NEBC: 01009683 Sium suave Walter USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-8-10
GH: 01009684 Sium suave Walter USA: Massachusetts Tewksbury: Tewksbury, Trull Brook C. W. Swan 1882-8
GH: 01009686 Sium suave Walter USA: Massachusetts Tewksbury: Tewksbury, Trull Brook C. W. Swan 1882-8-16
NEBC: 01009687 Sium suave Walter USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-8-10
NEBC: 00587066 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Chelmsford: Chelmsford, Lover's Lane C. W. Swan 1882-6-6
NEBC: 00587069 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Dunstable: Dunstable C. W. Swan 1886-8-20
NEBC: 00587080 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-9-1
NEBC: 00587081 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Tewksbury: Tewksbury, Trull Brook C. W. Swan 1882-8-14
Apocynaceae
NEBC: 01051795 Apocynum cannabinum Linnaeus USA: Massachusetts Lowell: Lowell, Mer'k R. [Merrimac River] C. W. Swan 1882-8-28
Aquifoliaceae
NEBC: 00760847 Ilex laevigata (Pursh) A. Gray USA: Maine Kennebunk: Kennebunk C. W. Swan 1885-8-12
NEBC: 00773935 Ilex mucronata (Linnaeus) M. Powell, Savolainen & S. Andrews USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-17
Araliaceae
NEBC: 00448476 Aralia nudicaulis Linnaeus USA: Massachusetts Chelmsford: Chelmsford Road C. W. Swan 1882
Asclepiadaceae
NEBC: 01035752 Asclepias exaltata Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-7-13
NEBC: 00750162 Asclepias purpurascens Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-1
NEBC: 01036665 Asclepias verticillata Linnaeus USA: Massachusetts Boston: Roxbury, Glen Road C. W. Swan 1880-8-12
Asteraceae
NEBC: 00531256 Anthemis arvensis Linnaeus USA: Massachusetts Lowell: Lowell, Powder Mills C. W. Swan 1885-8-23
GH: 00531408 Anthemis cotula Linnaeus USA: Massachusetts Lowell: Lowell, Powder Mills C. W. Swan 1885-8-23
NEBC: 00725593 Artemisia campestris caudata (Michaux) H. M. Hall & Clements USA: Maine Kennebunk: Kennebunk C. W. Swan 1885-7-15
NEBC: 00531726 Artemisia stelleriana Besser USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1883-7-10
NEBC: 00531888 Artemisia vulgaris Linnaeus USA: Massachusetts Medford: Medford C. W. Swan 1878-7-3
GH: 01021499 Aster paniculatus Lamarck USA: Massachusetts Lowell: Near Lowell C. W. Swan 1883
NEBC: 01021422 Aster sp. USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 01021423 Aster sp. USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
GH: 01021499 Aster sp. USA: Massachusetts Lowell: Near Lowell C. W. Swan 1883
NEBC: 00834788 Aster tradescantii Linnaeus USA: Massachusetts Lowell: Lowell, Merrimac R [River] C. W. Swan 1882-7-20
NEBC: 00834788 Aster tradescantii fragilis (Willdenow) Torrey & A. Gray USA: Massachusetts Lowell: Lowell, Merrimac R [River] C. W. Swan 1882-7-20
NEBC: 01021422 Aster tradescantii fragilis (Willdenow) Torrey & A. Gray USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 01021423 Aster tradescantii fragilis (Willdenow) Torrey & A. Gray USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 00359924 Aster umbellatus Miller USA: Massachusetts Medford: Pine Hill [Middlesex Fells Reservat... C. W. Swan 1880-10-8
NEBC: 00834788 Aster vimineus Lamarck USA: Massachusetts Lowell: Lowell, Merrimac R [River] C. W. Swan 1882-7-20
NEBC: 01021423 Aster vimineus foliolosus (Aiton) A. Gray USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 01021422 Aster vimineus saxatilis Fernald USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 01021423 Aster vimineus saxatilis Fernald USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 00735335 Balsamita major Desfontaines USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-8-27
NEBC: 00735626 Bidens aristosa (Michaux) Britton USA: Massachusetts Dracut: Dracut (Lowell) C. W. Swan 1884-9-16
NEBC: 00566619 Bidens bipinnata Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-9-16
NEBC: 01037356 Bidens cernua Linnaeus USA: Massachusetts Lowell: Lowell, Centralville C. W. Swan 1885-9-7
NEBC: 01037831 Bidens laevis (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Acton: Acton C. W. Swan 1884-9-6
NEBC: 01037836 Bidens laevis (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Billerica: Billerica C. W. Swan 1883-9-16
NEBC: 00735166 Centaurea benedicta (Linnaeus) Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 4960 1888-9-16
NEBC: 00577615 Centaurea stoebe micranthos (Gugler) Hayek USA: Massachusetts Westford: Westford, Woolen Mills C. W. Swan 1884-9-15
NEBC: 00633985 Crepis foetida Linnaeus USA: Massachusetts Lowell: Lowell, Graniteville C. W. Swan 1883-8-22
NEBC: 00359924 Doellingeria umbellata (Miller) Nees USA: Massachusetts Medford: Pine Hill [Middlesex Fells Reservat... C. W. Swan 1880-10-8
NEBC: 00626707 Erechtites hieraciifolius (Linnaeus) Rafinesque ex de Candolle USA: Massachusetts Boston: Dorchester C. W. Swan 1882-9-10
NEBC: 00535942 Erigeron philadelphicus Linnaeus USA: Massachusetts Reading: Reading C. W. Swan 1885-6-21
NEBC: 00753532 Eupatorium perfoliatum Linnaeus USA: Massachusetts Dracut: Dracut, Beaver brook C. W. Swan 1884-9-7
NEBC: 01034080 Eupatorium pilosum Walter USA: Massachusetts Lowell: Lowell C. W. Swan 1882-8-9
NEBC: 01034081 Eupatorium pilosum Walter USA: Massachusetts Lowell: Lowell, Osgood Woods [probably in Ay... C. W. Swan 1882-8-19
GH: 01015015 Eurybia radula (Aiton) G. L. Nesom USA: Massachusetts Lowell: near Lowell C. W. Swan
GH: 01015016 Eurybia radula (Aiton) G. L. Nesom USA: Massachusetts Lowell: Lowell, Osgood Woods [probably in Ay... C. W. Swan 1885-8-27
NEBC: 01020249 Eurybia schreberi (Nees) Nees USA: Massachusetts Lowell: Lowell, Osgood Woods [probably in Ay... C. W. Swan 1885-8-27
NEBC: 00295882 Gamochaeta pensylvanica (Willdenow) Cabrera USA: Massachusetts Lowell: C. W. Swan 1884-8-6
NEBC: 00735240 Grindelia squarrosa (Pursh) Dunal USA: Massachusetts Lowell: Lowell, Calhoun's Mill Yard C. W. Swan 1885
NEBC: 00535565 Helianthus annuus Linnaeus USA: Massachusetts Westford: Westford, Woollen Mills, Granitevi... C. W. Swan 1884-9-15
NEBC: 01008091 Helianthus decapetalus Linnaeus USA: Massachusetts Lowell: Lowell, Pawtucketville, River Rd C. W. Swan 1882-7-14
NEBC: 01008092 Helianthus decapetalus Linnaeus USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1883-7-7
NEBC: 01037979 Helianthus divaricatus Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-8-4
NEBC: 00535738 Helianthus laetiflorus Persoon USA: Massachusetts Boston: Boston, near R.R. [Railroad] C. W. Swan 1880-8-31
NEBC: 01017064 Helianthus strumosus Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-8-21
NEBC: 01071632 Hieracium venosum Linnaeus USA: Massachusetts Nantucket: Nantucket C. W. Swan 1886
NEBC: 01015303 Ionactis linariifolius (Linnaeus) Greene USA: Massachusetts Billerica: Billerica C. W. Swan 1885-9-18
NEBC: 00684769 Liatris scariosa novae-angliae Lunell USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-8-22
GH: 01047683 Nabalus albus (Linnaeus) Hooker USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1889-10-19
NEBC: 00576017 Onopordum acanthium Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1883-8-7
NEBC: 00735467 Parthenium hysterophorus Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-9-11
NEBC: 01037154 Pluchea odorata succulenta (Fernald) Cronquist USA: Massachusetts Boston: S [South] Boston Flats C. W. Swan 1880-9-8
NEBC: 00735185 Senecio viscosus Linnaeus USA: Massachusetts Boston: Boston C. W. Swan 1883-9-20
NEBC: 01077115 Sericocarpus linifolius (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1883-7-14
NEBC: 00553199 Solidago bicolor concolor Torrey & A. Gray USA: Massachusetts Winchester or Woburn C. W. Swan 1885-9-8
NEBC: 01055523 Solidago flexicaulis Linnaeus USA: Massachusetts Framingham: Framingham C. W. Swan 1885-8-29
NEBC: 00553199 Solidago sp. USA: Massachusetts Winchester or Woburn C. W. Swan 1885-9-8
NEBC: 01056990 Solidago uliginosa Nuttall USA: Massachusetts Bedford: Bedford C. W. Swan 1890-8
NEBC: 00719646 Symphyotrichum novae-angliae (Linnaeus) G. L. Nesom USA: Massachusetts Brookline: Brookline, Pond Avenue C. W. Swan
GH: 01014471 Symphyotrichum racemosum (Elliott) G. L. Nesom USA: Massachusetts Boston: Dorchester C. W. Swan
NEBC: 00834788 Symphyotrichum sp. USA: Massachusetts Lowell: Lowell, Merrimac R [River] C. W. Swan 1882-7-20
NEBC: 01021422 Symphyotrichum sp. USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 01021423 Symphyotrichum sp. USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
GH: 01021499 Symphyotrichum sp. USA: Massachusetts Lowell: Near Lowell C. W. Swan 1883
NEBC: 00359769 Taraxacum erythrospermum Andrzejowski ex Besser USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00359769 Taraxacum lacistophyllum (Dahlstedt) Raunkier USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00359769 Taraxacum laevigatum (Willdenow) de Candolle USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
Athyriaceae
NEBC: 00746572 Cystopteris tenuis (Michaux) Desvaux USA: Massachusetts Tewksbury: Tewksbury, Trull Brook C. W. Swan 1883-7-18
Berberidaceae
NEBC: 00834021 Podophyllum peltatum Linnaeus USA: Massachusetts Shirley: Shirley C. W. Swan 1884-8-12
Betulaceae
NEBC: 00657614 Alnus viridis crispa (Aiton) Turrill USA: New Hampshire Crawford's Purchase C. W. Swan 1888
NEBC: 00634446 Betula lenta Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1883-8-13
NEBC: 00678979 Betula nigra Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1883-7-11
NEBC: 00727216 Carpinus caroliniana virginiana (Marsh.) Furlow USA: Massachusetts Boston: Roxbury C. W. Swan 1883-6-22
NEBC: 00627880 Corylus americana Walter USA: Massachusetts Bedford: Bedford C. W. Swan 1883-4-14
NEBC: 00662568 Ostrya virginiana (Miller) K. Koch USA: Massachusetts Cambridge: Cambridge, Fresh Pond C. W. Swan 1885-7-13
NEBC: 00662027 Ostrya virginiana (Miller) K. Koch USA: Massachusetts Boston: Dorchester C. W. Swan 1883-5-18
Blechnaceae
NEBC: 00628449 Woodwardia virginica (Linnaeus) Smith USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1883-7-3
Boraginaceae
NEBC: 00718926 Buglossoides arvensis (Linnaeus) I. M. Johnston USA: Massachusetts Boston: West Boston, New lands C. W. Swan 1884-5-17
NEBC: 00375331 Cynoglossum officinale Linnaeus USA: Massachusetts Stoneham: Spot Pond [Middlesex Fells Reserva... C. W. Swan 1880-8-10
NEBC: 00643494 Scorpiurus muricatus Linnaeus USA: Massachusetts Westford: Westford, near woollen-mills, Gran... C. W. Swan 1884-9-15
Brassicaceae
NEBC: 00359161 Arabis drummondi A. Gray USA: Massachusetts Dracut: Merrimack River, Dracut C. W. Swan 1883-7-21
NEBC: 00359162 Arabis drummondi A. Gray USA: Massachusetts Dracut: 00359162 C. W. Swan 1885-9-9
NEBC: 01065476 Boechera canadensis (Linnaeus) Al-Shehbaz USA: Massachusetts Chelmsford: Chelmsford, Carlisle & Littlton ... C. W. Swan 1880-7-22
NEBC: 01065477 Boechera canadensis (Linnaeus) Al-Shehbaz USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1884-9-8
NEBC: 01007699 Boechera canadensis (Linnaeus) Al-Shehbaz USA: Massachusetts Chelsea: Chelsea C. W. Swan 1880-7-22
NEBC: 00712998 Boechera missouriensis (Greene) Al-Shehbaz USA: Massachusetts C. W. Swan
NEBC: 00757000 Boechera missouriensis (Greene) Al-Shehbaz USA: Massachusetts Medford: Medford C. W. Swan 1885-7-8
NEBC: 00359161 Boechera stricta (Graham) Al-Shehbaz USA: Massachusetts Dracut: Merrimack River, Dracut C. W. Swan 1883-7-21
NEBC: 00359162 Boechera stricta (Graham) Al-Shehbaz USA: Massachusetts Dracut: 00359162 C. W. Swan 1885-9-9
NEBC: 00593221 Brassica juncea (Linnaeus) Czernajew USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-4
NEBC: 00593429 Brassica rapa Linnaeus USA: Massachusetts Dracut: (Dracut) Lowell C. W. Swan 1884-8-4
NEBC: 01023406 Cakile edentula (Bigelow) Hooker USA: Massachusetts Hull: Hull C. W. Swan 1880-7-14
NEBC: 00592724 Camelina microcarpa Andrzejowski ex de Candolle USA: Massachusetts Westford: Westford, Woolen-Mill yard, Granit... C. W. Swan 1883-8-22
NEBC: 00617459 Descurainia sophia (Linnaeus) Webb ex Prantl USA: Massachusetts Lowell: Billerica road C. W. Swan 1884-6-15
NEBC: 00617462 Descurainia sophia (Linnaeus) Webb ex Prantl USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1884
NEBC: 00617797 Erysimum cheiranthoides Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1883-7-16
NEBC: 00735123 Erysimum odoratum Ehrhart USA: Massachusetts Westford: Westford, Graniteville C. W. Swan 1883-8-12
NEBC: 00735123 Erysimum sp. USA: Massachusetts Westford: Westford, Graniteville C. W. Swan 1883-8-12
NEBC: 00675002 Iberis amara Linnaeus USA: Massachusetts Boston: Dorchester, Shawmut Branch RR [Railr... C. W. Swan 1885-7-11
NEBC: 00564944 Lepidium campestre (Linnaeus) W. T. Aiton USA: Massachusetts Lowell: Lowell C. W. Swan
NEBC: 00612192 Sinapis alba Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-4
NEBC: 00582703 Sisymbrium altissimum Linnaeus USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1883-7-10
NEBC: 00691719 Sisymbrium loeselii Linnaeus USA: Massachusetts Westford: Westford, Graniteville C. W. Swan 1883-8-22
NEBC: 01066517 Turritis glabra Linnaeus USA: Massachusetts Lowell: Billerica road C. W. Swan 1882-7-13
Bryaceae
NEBC: 00843034 Leptobryum pyriforme (Hedwig) Wilson USA: Massachusetts Brookline: Longwood C. W. Swan 1891-5-23
Campanulaceae
NEBC: 00656777 Campanula rapunculoides Linnaeus USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-8-3
NEBC: 00820481 Campanula rotundifolia Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1883-7-19
NEBC: 00820484 Campanula rotundifolia Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1883-7-19
NEBC: 00820485 Campanula rotundifolia Linnaeus USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-7-17
Cannabaceae
NEBC: 00586141 Humulus lupulus Linnaeus USA: Massachusetts Billerica: Billerica C. W. Swan 1882-9-4
Caprifoliaceae
NEBC: 00691260 Linnaea borealis americana (Forbes) Rehder USA: Massachusetts Chelmsford: West Chelmsford C. W. Swan 1883-7-27
NEBC: 00312802 Lonicera tatarica Linnaeus USA: Massachusetts Blue Hills [Reservation] C. W. Swan 1884-5-30
NEBC: 00312802 Lonicera xylosteum Linnaeus USA: Massachusetts Blue Hills [Reservation] C. W. Swan 1884-5-30
NEBC: 00685911 Symphoricarpos occidentalis Hooker USA: Massachusetts Boston: Boston C. W. Swan 1884-9-26
NEBC: 00765781 Symphoricarpos occidentalis Hooker USA: Massachusetts Boston: Boston C. W. Swan 1884-6-24
NEBC: 00655572 Symphoricarpos orbiculatus Moench USA: Massachusetts Chelmsford: Chelmsford, Littleton road C. W. Swan 1890-7-20
NEBC: 00655574 Symphoricarpos orbiculatus Moench USA: Massachusetts Chelmsford: Chelmsford, not far from a farmh... C. W. Swan 1889-9-8
NEBC: 00702209 Viburnum acerifolium Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-25
NEBC: 00702208 Viburnum acerifolium Linnaeus USA: Massachusetts Boston: Longwood C. W. Swan 1883-6-14
NEBC: 00375942 Viburnum lentago Linnaeus USA: Massachusetts Beaver Brook Res. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00611255 Viburnum nudum cassinoides (Linnaeus) Torrey & A. Gray USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-22
NEBC: 00685322 Viburnum opulus trilobum (Marsh.) Clausen USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-8
Caryophyllaceae
NEBC: 00581147 Agrostemma githago Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-7-4
NEBC: 00525107 Dianthus armeria Linnaeus USA: Massachusetts Boston: Roxbury C. W. Swan
NEBC: 00525395 Gypsophila muralis Linnaeus USA: Massachusetts Dracut: Dracut, Long Pond C. W. Swan 1885
NEBC: 00722556 Paronychia fastigiata (Rafinesque) Fernald USA: Massachusetts Boston: West Boston Flats C. W. Swan 1882-10-2
NEBC: 00722765 Sagina nodosa (Linnaeus) Fenzl USA: Massachusetts Rockport: Rockport C. W. Swan
NEBC: 00612844 Sagina procumbens Linnaeus USA: Massachusetts Boston: Dorchester C. W. Swan 1882-6-24
NEBC: 00732920 Silene antirrhina Linnaeus USA: Massachusetts Lexington: Lexington C. W. Swan 1883-8-6
NEBC: 00575534 Silene caroliniana pensylvanica (Michaux) Fernald USA: Massachusetts Waltham: Waltham C. W. Swan 1881-5-29
NEBC: 00525588 Silene vulgaris (Moench) Garcke USA: Massachusetts Brookline: Brookline, Longwood O.C.R.R. [Old... C. W. Swan 1882-7-10
NEBC: 00693366 Spergularia marina (Linnaeus) Grisebach USA: Massachusetts Gloucester: W. [West] Gloucester C. W. Swan 1881-8-4
NEBC: 00693400 Spergularia marina (Linnaeus) Grisebach USA: Massachusetts Boston: W. [West] Boston flats C. W. Swan 1882-9-26
NEBC: 00693611 Stellaria alsine Grimm USA: Massachusetts Lowell: Lowell C. W. Swan 1883-7-11
GH: 00693616 Stellaria alsine Grimm USA: Massachusetts Andover: Andover, Haggett's Pond C. W. Swan 1880-8-6
NEBC: 00602976 Stellaria graminea Linnaeus USA: Massachusetts Gloucester: East Gloucester C. W. Swan 1881-6-7
NEBC: 00602988 Stellaria graminea Linnaeus USA: Massachusetts Andover: Haggetts Pond C. W. Swan 1880-8-6
Celastraceae
NEBC: 00295232 Celastrus scandens Linnaeus USA: Massachusetts Boston: Dorchester C. W. Swan 1881-6-19
Chenopodiaceae
NEBC: 00598509 Atriplex patula Linnaeus USA: Massachusetts Lowell: Lowell, Little Canada C. W. Swan 1883
NEBC: 00598936 Chenopodium capitatum (Linnaeus) Ascherson USA: Massachusetts Lowell: Lowell C. W. Swan 1883-8-15
NEBC: 00593040 Chenopodium urbicum Linnaeus USA: Massachusetts Lowell: Lowell, near woollen mills C. W. Swan 1880-7-14
NEBC: 00754809 Salicornia depressa Standley USA: Massachusetts Boston: W. [West] Boston Flats C. W. Swan 1882-10-5
NEBC: 00732331 Salsola kali Linnaeus USA: Massachusetts Boston: W. [West] Boston Flats C. W. Swan 1883-9-26
NEBC: 00732520 Suaeda linearis (Elliott) Moquin-Tandon USA: Massachusetts Gloucester: West Gloucester C. W. Swan 1881-8-4
NEBC: 00645099 Suaeda linearis (Elliott) Moquin-Tandon USA: Massachusetts O.C.R.R. [Old Colony Railroad] C. W. Swan 1882-10-7
Cistaceae
NEBC: 00699544 Crocanthemum canadense (Linnaeus) Britton USA: Massachusetts Westford: Westford, Burges Pond [Stony Brook... C. W. Swan 1885-9-11
NEBC: 00757198 Lechea maritima Leggett ex Britton USA: Massachusetts Bedford: Bedford C. W. Swan 1883-7-16
GH: 00757221 Lechea maritima Leggett ex Britton USA: Massachusetts Boston: Boston C. W. Swan 1886-9-15
NEBC: 00757935 Lechea tenuifolia Michaux USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-7-30
NEBC: 00757943 Lechea tenuifolia Michaux USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1884-8-24
NEBC: 00757946 Lechea tenuifolia Michaux USA: Massachusetts Boston: Boston C. W. Swan 1886-10-5
Convolvulaceae
NEBC: 00655724 Calystegia sepium americana (Sims) Brummitt USA: Massachusetts Bedford: Bedford C. W. Swan 1882
NEBC: 00656798 Calystegia sepium americana (Sims) Brummitt USA: Massachusetts Lowell: Lowell, Ayer's City C. W. Swan 1882-7-9
NEBC: 00714959 Cuscuta pentagona Engelmann USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1884-8-27
NEBC: 00633978 Ipomoea hederacea Jacquin USA: Massachusetts Lowell: Lowell, Little Canada C. W. Swan 1884-9-16
NEBC: 00668544 Ipomoea hirsutula Jacq. f. USA: Massachusetts Lowell: Dracut dump, Lowell C. W. Swan 1884-9-16
NEBC: 00633970 Ipomoea lacunosa Linnaeus USA: Massachusetts Lowell: Lowell, Little Canada C. W. Swan 1884-9-11
Cornaceae
NEBC: 00387593 Cornus alternifolia Linnaeus f. USA: Massachusetts Near the road to the Oak Meadow. Beaver Broo... C. W. Swan 1894-5-30
NEBC: 00773468 Cornus alternifolia Linnaeus f. USA: Massachusetts Lowell: Lowell C. W. Swan 1882-6-20
NEBC: 00773485 Cornus alternifolia Linnaeus f. USA: Massachusetts Dedham: Dedham C. W. Swan 1882-6-17
NEBC: 00387593 Cornus sp. USA: Massachusetts Near the road to the Oak Meadow. Beaver Broo... C. W. Swan 1894-5-30
NEBC: 00387593 Swida alternifolia (Linnaeus f.) Small USA: Massachusetts Near the road to the Oak Meadow. Beaver Broo... C. W. Swan 1894-5-30
Crassulaceae
NEBC: 00581977 Sedum acre Linnaeus USA: Massachusetts North Reading: No. Reading C. W. Swan 1885-6-21
NEBC: 00591452 Sedum telephium Linnaeus USA: Massachusetts Tyngsborough: Tyngsborough C. W. Swan 1882-8-14
Cucurbitaceae
NEBC: 01026236 Sicyos angulatus Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1885-8-27
Cupressaceae
NEBC: 00652263 Chamaecyparis thyoides (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Hopkinton: Hopkinton, Whitehall Pond C. W. Swan 1885-9-3
Cyperaceae
NEBC: 00135675 Carex acutiformis Ehrhart USA: Massachusetts Boston: Dorchester C. W. Swan 1884-8-9
NEBC: 00135674 Carex acutiformis Ehrhart USA: Massachusetts Boston: Dorchester, Savin Hill, Old Colony R... C. W. Swan 1884-7-9
NEBC: 00135744 Carex alata Torrey USA: Massachusetts Chelmsford: C. W. Swan 1882-7-8
NEBC: 00217475 Carex alata Torrey USA: Massachusetts Chelmsford: C. W. Swan 1883-7-3
NEBC: 00135743 Carex alata Torrey USA: Massachusetts Chelmsford: C. W. Swan 1882-7-11
NEBC: 00214115 Carex albicans emmonsii (Dewey ex Torrey) Rettig USA: Massachusetts Boston: Roxbury C. W. Swan 1882-6-21
NEBC: 00218077 Carex blanda Dewey USA: Massachusetts Brookline: Heath Street C. W. Swan 1882-6-9
NEBC: 00218040 Carex blanda Dewey USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00221256 Carex brevior (Dewey) Mackenzie ex Lunell USA: Massachusetts Boston: West Boston Flats C. W. Swan 1882-6-25
NEBC: 00221580 Carex canescens Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00221580 Carex canescens disjuncta (Fernald) Toivonen USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00221580 Carex canescens disjuncta Fernald USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00232848 Carex cephalantha (L. H. Bailey) E. P. Bicknell USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00222098 Carex cephalophora Muhlenberg USA: Massachusetts Brookline: C. W. Swan 1884-6-21
NEBC: 00222380 Carex communis communis USA: New Hampshire Tamworth: C. W. Swan 1888-8-23
NEBC: 00222784 Carex comosa Boott USA: Massachusetts Chelmsford: C. W. Swan 1882-6-28
NEBC: 00222793 Carex comosa Boott USA: Massachusetts Tewksbury: Long Pond C. W. Swan 1882-8-13
NEBC: 00228390 Carex crinita Lamarck USA: Massachusetts Beaver Brook Reservn., near 1st Oak [The Wav... C. W. Swan 1894-7-6
NEBC: 00228384 Carex crinita crinita USA: Massachusetts Rockport: C. W. Swan 1881-8-20
NEBC: 00228390 Carex crinita crinita USA: Massachusetts Beaver Brook Reservn., near 1st Oak [The Wav... C. W. Swan 1894-7-6
NEBC: 00261966 Carex crinita gynandra (Schweinitz) Schweinitz & Torrey USA: Massachusetts Merrimace R [River] C. W. Swan 1882-7-20
NEBC: 00228742 Carex cryptolepis Mackenzie USA: Massachusetts Chelmsford: C. W. Swan 1882-7-11
NEBC: 00229166 Carex debilis rudgei L. H. Bailey USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00232848 Carex echinata Murray USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00232848 Carex echinata echinata USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00339123 Carex filiformis latifolia Boeckeler USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00339118 Carex foenea Willdenow USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00241173 Carex folliculata Linnaeus USA: Massachusetts Lowell: F. R. R. [Fitchburg Railroad?] C. W. Swan 1880-7-18
NEBC: 00241659 Carex gracillima Schweinitz USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00261966 Carex gynandra Schweinitz USA: Massachusetts Merrimace R [River] C. W. Swan 1882-7-20
NEBC: 00299122 Carex intumescens Rudge USA: Massachusetts Lowell: C. W. Swan 1880-7-25
NEBC: 00339123 Carex lanuginosa Michaux USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00299707 Carex lasiocarpa americana Fernald USA: Maine Kennebunk: C. W. Swan 1885-7-25
NEBC: 00353645 Carex laxiculmis Schweinitz USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00353645 Carex laxiculmis laxiculmis USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 01030400 Carex laxiflora Lamarck USA: Massachusetts Cambridge: Cambridge, Fresh Pond C. W. Swan 1886-6-6
NEBC: 01030415 Carex laxiflora Lamarck USA: Massachusetts Malden: Malden C. W. Swan 1887-5-22
NEBC: 00218040 Carex laxiflora blanda (Dewey) Boott USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 01049523 Carex lenticularis Michaux USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 01049524 Carex lenticularis Michaux USA: Massachusetts Lowell: Lowell, Merrimac R [River] C. W. Swan 1882-7-20
NEBC: 00339341 Carex leptalea Wahlenberg USA: Massachusetts Dedham: Purgatory Swamp C. W. Swan 1882-6-17
NEBC: 01049674 Carex leptalea Wahlenberg USA: Massachusetts Dracut: Dracut C. W. Swan 1882-7-31
NEBC: 01030644 Carex longii Mackenzie USA: Massachusetts Nantucket: Nantucket C. W. Swan 1888-8-13
NEBC: 01030647 Carex longii Mackenzie USA: Massachusetts Nantucket: Nantucket C. W. Swan 1888-7-12
NEBC: 00339111 Carex lurida Wahlenberg USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00339111 Carex lurida flaccida L. H. Bailey USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00339118 Carex mirabilis perlonga Fernald USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00726107 Carex muehlenbergii Schkuhr ex Willdenow USA: Massachusetts Boston: Boston, Back Bay Park C. W. Swan 1884-6-23
NEBC: 00339345 Carex muricata Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00807080 Carex nigra (Linnaeus) Reichard USA: Massachusetts Ashby: Ashby C. W. Swan 1885-5-30
NEBC: 00339118 Carex normalis Mackenzie USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00807200 Carex normalis Mackenzie USA: Massachusetts Boston: Roxbury C. W. Swan 1068 1885-7-1
NEBC: 00895885 Carex oligosperma Michaux USA: Massachusetts Bedford: Bedford C. W. Swan 1886-7-25
NEBC: 00854068 Carex paleacea Schreber ex Wahlenberg USA: Maine Kennebunk: Kennebunk C. W. Swan 1885-7-27
NEBC: 00339121 Carex pallescens Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00576837 Carex panicea Linnaeus USA: Massachusetts Boston: Dorchester, Lawrence Av. C. W. Swan 1881-6-19
NEBC: 00339123 Carex pellita Muhlenberg ex Willdenow USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00854638 Carex pellita Muhlenberg ex Willdenow USA: Massachusetts Boston: West Roxbury, Williams St. C. W. Swan 1882-6-26
NEBC: 00339124 Carex pensylvanica Lamarck USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00854990 Carex plantaginea Lamarck USA: Massachusetts Lowell: Lowell C. W. Swan 1881-6-12
NEBC: 01161578 Carex platyphylla J. Carey USA: Connecticut Middletown: Middletown C. W. Swan 1883-6-2
NEBC: 00339265 Carex projecta Mackenzie USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 01029647 Carex pseudocyperus Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-7-5
NEBC: 00802240 Carex scabrata Schweinitz USA: New Hampshire Tamworth: Tamworth C. W. Swan 1888-8-19
GH: 00802441 Carex seorsa Howe USA: Massachusetts C. W. Swan 1883-6-21
NEBC: 00339345 Carex spicata Hudson USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00576896 Carex spicata Hudson USA: Massachusetts Somerville: Somerville C. W. Swan 1885-6-6
NEBC: 00576949 Carex spicata Hudson USA: Massachusetts Boston: [West] Roxbury, Glen Road C. W. Swan 1882-4-3
NEBC: 00576950 Carex spicata Hudson USA: Massachusetts Brookline: Brookline, Parker Hill C. W. Swan 1882-6-21
NEBC: 00232848 Carex stellulata cephalantha (L. H. Bailey) Fernald USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00232848 Carex sterilis Schkuhr ex Willdenow USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-30
NEBC: 00339348 Carex stipata Muhlenberg ex Willdenow USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00339352 Carex stricta Lamarck USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00339352 Carex stricta curtissima Peck USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 01059328 Carex tenera Dewey USA: Massachusetts Boston: Boston, Forest Hills C. W. Swan 1882-6-11
NEBC: 00766540 Carex tonsa rugosperma (Mackenzie) Crins USA: Massachusetts Boston: West Boston C. W. Swan 1882-6-21
NEBC: 00339363 Carex tribuloides Wahlenberg USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00339265 Carex tribuloides reducta L. H. Bailey USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00874783 Carex vestita Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-17
GH: 00874787 Carex vestita Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-26
NEBC: 01061290 Carex virescens Muhlenberg ex Willdenow USA: Massachusetts Ashby: Ashby C. W. Swan 1882-8-11
NEBC: 01061369 Carex viridula Michaux USA: Maine Kennebunk: Kennebunk C. W. Swan 1885-7-24
NEBC: 01043180 Carex viridula Michaux USA: Massachusetts Gloucester: Gloucester, beyond Bass Rocks C. W. Swan 1881-8-20
NEBC: 01043190 Carex viridula Michaux USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-8-5
NEBC: 01042169 Cladium mariscoides (Muhlenberg) Torrey USA: Massachusetts East Gloucester C. W. Swan 1881
NEBC: 01042465 Cyperus bipartitus Torrey USA: Connecticut Warren: Warren C. W. Swan 1887
NEBC: 00685554 Cyperus echinatus (Linnaeus) Wood USA: Massachusetts Boston: West Boston Flats C. W. Swan 1880-9-25
NEBC: 00685555 Cyperus echinatus (Linnaeus) Wood USA: Massachusetts Boston: Boston C. W. Swan 1880-9-25
NEBC: 01042739 Cyperus erythrorhizos Muhlenberg USA: Massachusetts Lawrence: Lawrence C. W. Swan 1884-9-18
NEBC: 01043990 Cyperus filicinus Vahl USA: Massachusetts Boston: Boston, Beacon St. C. W. Swan 1881-9-14
NEBC: 01061595 Cyperus lupulinus macilentus (Fernald) Marcks USA: Massachusetts Boston: Boston C. W. Swan 1886-9-30
NEBC: 01048155 Cyperus strigosus Linnaeus USA: Massachusetts Chelmsford: No. [North] Chelmsford C. W. Swan 1882-8-10
NEBC: 00339559 Eleocharis acicularis (Linnaeus) Roemer & Schultes USA: Massachusetts Westford: Long Sought For Pond C. W. Swan 1886-9-1
NEBC: 00339558 Eleocharis acicularis (Linnaeus) Roemer & Schultes USA: Massachusetts Groton: Groton,k Paddicook [Baddacook] Pond C. W. Swan 1886-8-30
NEBC: 01061895 Eleocharis acicularis (Linnaeus) Roemer & Schultes USA: Massachusetts Dracut: Dracut C. W. Swan 1882-7-31
NEBC: 00770927 Eleocharis elliptica Kunth USA: Massachusetts Lowell: Lowell C. W. Swan 1882-6-11
GH: 01048036 Eleocharis engelmannii detonsa A. Gray USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1884-9-1
NEBC: 00339724 Eleocharis obtusa (Willdenow) Schultes USA: Massachusetts Milton: C. W. Swan 1881-9-25
NEBC: 00339724 Eleocharis obtusa jejuna Fernald USA: Massachusetts Milton: C. W. Swan 1881-9-25
NEBC: 00339724 Eleocharis ovata (Roth) Roemer & Schultes USA: Massachusetts Milton: C. W. Swan 1881-9-25
NEBC: 01048510 Eleocharis palustris (Linnaeus) Roemer & Schultes USA: Massachusetts Nantucket: Nantucket C. W. Swan 1886
NEBC: 01048722 Eleocharis robbinsii Oakes USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00717842 Eleocharis tuberculosa retrorsa Svenson USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881-7-28
NEBC: 01060261 Eriophorum alpinum Linnaeus USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1881-7-14
NEBC: 01058042 Fimbristylis autumnalis (Linnaeus) Roemer & Schultes USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1881-8-24
NEBC: 00802907 Rhynchospora fusca (Linnaeus) W. T. Aiton USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00894622 Scirpus atrocinctus Fernald USA: Massachusetts Lowell: Lowell, Ayre's City C. W. Swan 1882-7-9
NEBC: 00894639 Scirpus atrocinctus Fernald USA: Massachusetts [Swan collected in Lowell & Tewksbury on thi... C. W. Swan 1882-7-17
NEBC: 00894646 Scirpus atrocinctus Fernald USA: Massachusetts Boston: W. [West] Boston C. W. Swan 1881-6-27
NEBC: 01160276 Scirpus cyperinus (Linnaeus) Kunth USA: Massachusetts Boston: W. [West] Boston C. W. Swan 1881-9-8
NEBC: 00638685 Scirpus hallii A. Gray USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1884-8-27
NEBC: 00895418 Scirpus pungens Vahl USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-7-23
NEBC: 00638738 Scirpus purshianus Fernald USA: Massachusetts Lowell: Lowell C. W. Swan 1882-8-16
NEBC: 00638739 Scirpus purshianus Fernald USA: Massachusetts Tewksbury: Tewksbury, Trull Brook C. W. Swan 1882-8-16
NEBC: 01161111 Scirpus subterminalis Torrey USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00854135 Scirpus tabernaemontani C. C. Gmelin USA: Massachusetts Gloucester: E. [East] Gloucester, Downs C. W. Swan 1881-7-30
Dicranaceae
NEBC: 00825348 Orthodicranum flagellare (Hedwig) Loeske USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1885-9-12
Ditrichaceae
NEBC: 00514941 Ceratodon purpureus (Hedwig) Bridel USA: Massachusetts Brookline: Longwood C. W. Swan 1891-5-23
Dysphaniaceae
NEBC: 00732264 Dysphania anthelminticum (Linnaeus) Mosyakin & Clemants USA: Massachusetts Lowell: Lowell C. W. Swan 1884-9-11
NEBC: 00685992 Dysphania graveolens (Willdenow) Mosyakin & Clemants USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1885-9-20
NEBC: 00685993 Dysphania graveolens (Willdenow) Mosyakin & Clemants USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1885-9-20
Entodontaceae
NEBC: 00850192 Pleurozium schreberi (Willdenow ex Bridel) Mitten USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1888-8
Equisetaceae
NEBC: 00654137 Equisetum sylvaticum Linnaeus USA: Massachusetts Tewksbury: Long Pond, Tewksbury C. W. Swan
Ericaceae
NEBC: 01013470 Andromeda polifolia glaucophylla (Link) de Candolle USA: Massachusetts Tewksbury: Long Pond, Tewksbury C. W. Swan 1883-6-3
NEBC: 00517828 Epigaea repens Linnaeus USA: Massachusetts Townsend: W. [West] Townsend C. W. Swan 1884-5-3
NEBC: 00517830 Epigaea repens Linnaeus USA: Massachusetts Townsend: W. [West] Townsend C. W. Swan 1884-5-3
NEBC: 01078718 Eubotrys racemosa (Linnaeus) Nuttall USA: Massachusetts Medford: Medford C. W. Swan 1885-7-8
NEBC: 01078805 Gaylussacia frondosa (Linnaeus) Torrey & A. Gray USA: Massachusetts Dracut: Dracut C. W. Swan 1882-7-15
NEBC: 01039305 Kalmia polifolia Wangenheim USA: Massachusetts Westford: Westford C. W. Swan 1883-8-25
NEBC: 01073224 Pyrola americana Sweet USA: Massachusetts Groton: Groton C. W. Swan 1881
NEBC: 00563796 Pyrola chlorantha Swartz USA: Massachusetts Concord: Concord C. W. Swan 1890
NEBC: 01073406 Pyrola elliptica Nuttall USA: Massachusetts Groton: Groton C. W. Swan 1881
NEBC: 00519436 Vaccinium corymbosum Linnaeus USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1883
Euphorbiaceae
NEBC: 00563010 Chamaesyce nutans (Lagasca) Small USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-6
NEBC: 00563016 Chamaesyce nutans (Lagasca) Small USA: Massachusetts Boston: W. [West] Boston flats C. W. Swan 1881-9-26
NEBC: 00643024 Croton texensis (Klotzsch) Müller Argoviensis USA: Massachusetts Boston: Boston, Back Bay C. W. Swan 1890-9-9
GH: 00643025 Croton texensis (Klotzsch) Müller Argoviensis USA: Massachusetts Boston: Boston, Back Bay C. W. Swan 1890-9-9
Fabaceae
NEBC: 00562317 Amphicarpaea bracteata (Linnaeus) Fernald USA: Massachusetts Boston: West Boston flats C. W. Swan 1882-10-2
NEBC: 00747713 Coronilla Linnaeus USA: Massachusetts Westford: Westford, Woollen-MIlls, Granitevi... C. W. Swan 1885-8-20
NEBC: 00654320 Coronilla Linnaeus USA: Massachusetts Westford: Westford, Woollen-MIlls, Granitevi... C. W. Swan 1884-9-15
NEBC: 00747719 Crotalaria sagittalis Linnaeus USA: Massachusetts Chelmsford: W. [West] Chelmsford C. W. Swan 1883-7-27
NEBC: 00739040 Desmodium ciliare (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Dracut: Dracut C. W. Swan 1885-9-7
NEBC: 00712409 Desmodium cuspidatum (Muhlenberg ex Willdenow) de Candolle ex G. Don USA: Massachusetts Lowell: Lowell C. W. Swan 1885-8-26
NEBC: 00712410 Desmodium cuspidatum (Muhlenberg ex Willdenow) de Candolle ex G. Don USA: Massachusetts Lowell: Lowell C. W. Swan 1885-8-26
NEBC: 00711155 Desmodium marilandicum (Linnaeus) de Candolle USA: Massachusetts Concord: Concord C. W. Swan 1884-8-28
NEBC: 00558560 Desmodium nudiflorum (Linnaeus) de Candolle USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1883-8-17
NEBC: 00711230 Desmodium obtusum (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Concord: Concord C. W. Swan 1884-8-23
NEBC: 00711231 Desmodium obtusum (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Groton: Groton C. W. Swan 1886-7-20
NEBC: 00711237 Desmodium obtusum (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1884-8-16
NEBC: 00639186 Desmodium rotundifolium (Michaux) de Candolle USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1884-9-8
NEBC: 00591532 Genista tinctoria Linnaeus USA: New Hampshire Beverly C. W. Swan 1881-7-19
NEBC: 00643381 Lathyrus palustris Linnaeus USA: Massachusetts Boston: Roxbury C. W. Swan 1880-5-25
NEBC: 00643137 Lathyrus sativus Linnaeus USA: Massachusetts Dracut: Dracut (Lowell) C. W. Swan 1884-8-4
NEBC: 00564172 Lespedeza frutescens (Linnaeus) Hornemann USA: Massachusetts Hopkinton: C. W. Swan 1885-9-3
NEBC: 00564185 Lespedeza frutescens (Linnaeus) Hornemann USA: Massachusetts Woburn: Woburn C. W. Swan 1885-9-8
NEBC: 00754020 Lespedeza stuevei Nuttall USA: Massachusetts Hopkinton: Hopkinton C. W. Swan 1885-9-3
NEBC: 00754021 Lespedeza stuevei Nuttall USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-8-30
NEBC: 00639638 Lespedeza violacea (Linnaeus) Persoon USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-7-30
NEBC: 00565323 Lupinus perennis Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1882-6-6
NEBC: 00565315 Lupinus perennis Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-6
NEBC: 00565334 Lupinus perennis Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-28
NEBC: 00735829 Medicago USA: Massachusetts Westford: Westford, Woollen mills, Granitevi... C. W. Swan 1885-8-20
NEBC: 00735830 Medicago USA: Massachusetts Westford: Westford, Graniteville C. W. Swan 1885-8-20
NEBC: 00534246 Medicago arabica (Linnaeus) Hudson USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-6
NEBC: 00735807 Medicago laciniata (Linnaeus) Miller USA: Massachusetts Dracut: Dracut (Lowell) dump C. W. Swan 1884-8-6
NEBC: 00534322 Medicago lupulina Linnaeus USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881
NEBC: 00735820 Medicago minima Linnaeus & Desrousseaux USA: Massachusetts Westford: Westford, Woollen mills, Granitevi... C. W. Swan 1885-8-20
NEBC: 00285893 Medicago monantha (C. A. Meyer) Trautvetter USA: Massachusetts Dracut: Dracut (Lowell) dump C. W. Swan 1884
NEBC: 00534446 Medicago polymorpha Linnaeus USA: Massachusetts Billerica: Billerica, Woollen mills C. W. Swan 1885-9-18
NEBC: 00534449 Medicago polymorpha Linnaeus USA: Massachusetts Dracut: Dracut, Woolen Mills C. W. Swan 1883-8-1
NEBC: 00534451 Medicago polymorpha Linnaeus USA: Massachusetts Westford: Westford, near Woolen mill, Granit... C. W. Swan 1885-8-20
NEBC: 00643490 Pisum sativum Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-4
NEBC: 00643491 Pisum sativum Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-6
NEBC: 00643492 Pisum sativum Linnaeus USA: Massachusetts Dracut: Lowell (Dracut dump) C. W. Swan 1884-8-6
NEBC: 00534787 Robinia viscosa Ventenat USA: Massachusetts Boston: W. [West] Boston Flats C. W. Swan 1883-9-19
NEBC: 00739913 Strophostyles helvola (Linnaeus) Elliott USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-9-6
NEBC: 00739917 Strophostyles helvola (Linnaeus) Elliott USA: Massachusetts Boston: Dorchester, O.C.R.R. [Old Colony Rai... C. W. Swan 1882-10-1
NEBC: 00739924 Strophostyles helvola (Linnaeus) Elliott USA: Massachusetts Boston: Dorchester C. W. Swan 1885-7-11
NEBC: 00639978 Tephrosia virginiana (Linnaeus) Persoon USA: Massachusetts Lowell: Merrimac R. [River] C. W. Swan 1882-7-20
NEBC: 00639984 Tephrosia virginiana (Linnaeus) Persoon USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1883-7-3
NEBC: 00643495 Trifolium dalmaticum Visiani USA: Massachusetts Dracut: Dump, Dracut (Lowell) C. W. Swan 1884-8-6
NEBC: 00586669 Trifolium hybridum Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-9-16
NEBC: 00586686 Trifolium hybridum Linnaeus USA: Massachusetts Boston: Boston, Franklin Park C. W. Swan 1888-9-29
NEBC: 00285893 Trigonella cassia Boissier USA: Massachusetts Dracut: Dracut (Lowell) dump C. W. Swan 1884
NEBC: 00285893 Trigonella noeana Boissier USA: Massachusetts Dracut: Dracut (Lowell) dump C. W. Swan 1884
NEBC: 00285893 Trigonella phrygia Boiss. & Balansa USA: Massachusetts Dracut: Dracut (Lowell) dump C. W. Swan 1884
NEBC: 00463277 Vicia cracca Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-7-18
NEBC: 00591723 Vicia hirsuta (Linnaeus) Gray USA: Massachusetts Dracut: Dracut dump, Lowell C. W. Swan 1884-8-6
NEBC: 00591887 Vicia sativa nigra (Linnaeus) Ehrhart USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-6
NEBC: 00591891 Vicia sativa nigra (Linnaeus) Ehrhart USA: Massachusetts Tewksbury: Tewksbury, Trull's Brook Road to ... C. W. Swan 1882-7-17
NEBC: 00761010 Vicia tetrasperma (Linnaeus) Schreber USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-6
Fagaceae
NEBC: 00567045 Castanea dentata (Marshall) Borkhausen USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-7-15
NEBC: 00695283 Quercus ilicifolia Wangenheim USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-6
NEBC: 00662609 Quercus ilicifolia Wangenheim USA: Massachusetts Groton: Groton, Dalton Rd. C. W. Swan 1882-6-6
NEBC: 00676062 Quercus prinoides Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan
NEBC: 00676063 Quercus prinoides Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan 1883-7-15
Fontinalaceae
NEBC: 00779955 Fontinalis novae-angliae Sullivant USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1888-8-28
Funariaceae
NEBC: 00847370 Physcomitrium pyriforme (Hedwig) Hampe USA: Massachusetts Boston: Franklin Park, Roxbury C. W. Swan 1891-5-19
Gentianaceae
NEBC: 00726870 Gentiana linearis Froelich USA: New Hampshire Antrim: Antrim C. W. Swan 1894
NEBC: 00574831 Menyanthes trifoliata minor Rafinesque USA: Massachusetts Lowell: Lowell C. W. Swan 1880-5-23
Geraniaceae
NEBC: 00679923 Erodium botrys (Cavanilles) Bertoloni USA: Massachusetts Westford: Westford, Woollen MIlls, Granitevi... C. W. Swan 1884-9-15
NEBC: 00761070 Erodium cicutarium (Linnaeus) L'Heritier ex Aiton USA: Massachusetts Dracut: Dracut C. W. Swan 1883-8-1
NEBC: 00761071 Erodium cicutarium (Linnaeus) L'Heritier ex Aiton USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-4
NEBC: 00761072 Erodium cicutarium (Linnaeus) L'Heritier ex Aiton USA: Massachusetts Lowell: Lowell, Chase's Mill C. W. Swan 1880-7-14
NEBC: 00679956 Geranium dissectum Linnaeus USA: Massachusetts Dracut: Dracut dump, Lowell C. W. Swan 1884-8-4
Haloragaceae
NEBC: 01067106 Myriophyllum humile (Rafinesque) Morong USA: Massachusetts Bedford: Bedford, Concord R. [River] C. W. Swan 1884-8-28
NEBC: 01071065 Myriophyllum tenellum Bigelow USA: Massachusetts Westford: Westford, Long-sought-for Pond C. W. Swan 1886-9-1
Hypericaceae
NEBC: 00774017 Hypericum boreale (Britton) E. P. Bicknell USA: Massachusetts Gloucester: Gloucester, Niles Pond C. W. Swan 1881-8-1
NEBC: 00715236 Hypericum canadense Linnaeus USA: Massachusetts Andover: Andover C. W. Swan 1882-8-27
NEBC: 00773147 Hypericum ellipticum Hooker USA: Massachusetts Lowell: Lowell, Trull Brook C. W. Swan 1882-8-16
NEBC: 00774481 Hypericum majus (A. Gray) Britton USA: Massachusetts Lowell: Lowell, OC. RR [Old Colony Railroad]... C. W. Swan 1882-9-13
NEBC: 00629088 Hypericum mutilum Linnaeus USA: Massachusetts Lowell: Lowell, OC.RR [Old Colony Railroad] C. W. Swan 1882-9-13
Iridaceae
NEBC: 01044622 Sisyrinchium atlanticum E. P. Bicknell USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-7-9
NEBC: 01044649 Sisyrinchium atlanticum E. P. Bicknell USA: Massachusetts Boston: Dorchester C. W. Swan 1885-6-25
NEBC: 01044652 Sisyrinchium atlanticum E. P. Bicknell USA: Massachusetts Boston: Dorchester, Mattapan C. W. Swan 1885-6-15
Isoetaceae
NEBC: 00744792 Isoetes riparia Engelmann USA: Massachusetts Bedford: Bedford C. W. Swan
Juncaceae
NEBC: 00864328 Juncus acuminatus lancifolia Michaux USA: Massachusetts Lowell: Concord R. [River] Fort H. [Hill] C. W. Swan 1882-7-25
NEBC: 01174022 Juncus articulatus Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-4
NEBC: 01025693 Juncus balticus littoralis (Engelmann) Snogerup USA: Massachusetts Gloucester: E [East] Gloucester C. W. Swan 1881-8-1
NEBC: 01174874 Juncus bufonius Linnaeus USA: Massachusetts Gloucester: E [East] Gloucester C. W. Swan 1881-7-14
NEBC: 01174873 Juncus bufonius Linnaeus USA: Massachusetts Gloucester: E [East] Gloucester C. W. Swan 1881-7
NEBC: 00835007 Juncus canadensis J. Gay ex Laharpe USA: Massachusetts Littleton: Littleton C. W. Swan 1882-8-11
NEBC: 00835020 Juncus canadensis J. Gay ex Laharpe USA: Massachusetts Boston: Dorchester C. W. Swan 1882-9-13
NEBC: 00339936 Juncus effusus Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00339936 Juncus effusus solutus Fernald & Wiegand USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00860030 Juncus filiformis Linnaeus USA: Vermont Stowe: Stowe, Mt. Mansfield C. W. Swan 1884-7-24
NEBC: 00860636 Juncus greenei Oakes & Tuckerman USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-9
NEBC: 00339938 Juncus marginatus Rostkovius USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00860758 Juncus marginatus Rostkovius USA: Massachusetts Gloucester: Gloucester, Bass Rock C. W. Swan 1881-7-28
NEBC: 00860768 Juncus marginatus Rostkovius USA: Massachusetts Bedford: Bedford C. W. Swan 1883-7-7
NEBC: 01045734 Juncus militaris Bigelow USA: Massachusetts Cambridge: W. [West] Cambridge, Niles Pond C. W. Swan 1881-8-12
NEBC: 01045737 Juncus militaris Bigelow USA: Massachusetts Dracut: Dracut, Long Pond C. W. Swan 1880-7-20
NEBC: 00339945 Juncus tenuis Willdenow USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 01150276 Juncus tenuis Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-4
NEBC: 01150277 Juncus tenuis Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-9
NEBC: 00734111 Juncus trifidus Linnaeus USA: New Hampshire Jaffrey: Jaffrey C. W. Swan 1883-8-10
NEBC: 00865362 Luzula multiflora (Ehrhart) Lejeune USA: Massachusetts Boston: West Roxbury C. W. Swan 1881-6-5
NEBC: 00865361 Luzula multiflora (Ehrhart) Lejeune USA: Massachusetts Brookline: Brookline, Pond Ave. C. W. Swan 1881-6-22
Lamiaceae
NEBC: 00696415 Collinsonia canadensis Linnaeus USA: Massachusetts Dracut: Dracut, Long Pond C. W. Swan 1882-9-17
NEBC: 00685125 Galeopsis bifida Boenninghausen USA: Massachusetts Lowell: Lowell C. W. Swan 1882
NEBC: 00505836 Hedeoma pulegioides (Linnaeus) Persoon USA: Massachusetts Dracut: Collinsville C. W. Swan 1883-8-1
NEBC: 00749155 Marrubium vulgare Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-4
NEBC: 00751952 Mentha gracilis Sole USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-8-22
NEBC: 00751954 Mentha gracilis Sole USA: Massachusetts Lowell: Lowell C. W. Swan 1882-8-13
NEBC: 00611455 Mentha piperita Linnaeus USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-8-27
NEBC: 00611456 Mentha piperita Linnaeus USA: Massachusetts Westford: Westford C. W. Swan 1883-9-5
NEBC: 00642121 Monarda fistulosa mollis (Linnaeus) Bentham USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1883-8-17
NEBC: 00696677 Monarda fistulosa mollis (Linnaeus) Bentham USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-8-4
NEBC: 00642122 Monarda fistulosa mollis (Linnaeus) Bentham USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-8-21
NEBC: 00655982 Perilla frutescens crispa (Benth.) Deane USA: Massachusetts Boston: Roxbury Crossing, Police Station C. W. Swan 1882-10-16
NEBC: 00696687 Pycnanthemum muticum (Michaux) Persoon USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-8-25
NEBC: 00691644 Satureja hortensis Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-7-4
NEBC: 00707472 Stachys hispida Pursh USA: Massachusetts Lowell: Lowell, near Concord River C. W. Swan 1880-7-14
NEBC: 00707473 Stachys hispida Pursh USA: Massachusetts Lowell: Lowell, Ayer's City C. W. Swan 1880
Lentibulariaceae
NEBC: 00731732 Utricularia intermedia Hayne USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00731744 Utricularia intermedia Hayne USA: Massachusetts Westford: Westford, Long Sough For Pond C. W. Swan 1886-9-1
NEBC: 00664356 Utricularia radiata Small USA: Massachusetts Tewksbury: Tewksbury, Long P. [Pond] C. W. Swan 1883-7-17
NEBC: 00664447 Utricularia resupinata B. D. Greene ex Bigelow USA: New Hampshire Tamworth: Tamworth C. W. Swan 1888
Liliaceae
NEBC: 00817961 Maianthemum stellatum (Linnaeus) Link USA: Maine Kennebunk: Kennebunk, Great Hill C. W. Swan 1885-8-16
NEBC: 01182874 Maianthemum stellatum (Linnaeus) Link USA: Massachusetts Andover: Andover, Haggett's P. [Pond] C. W. Swan 1880-8-6
NEBC: 01030962 Streptopus lanceolatus (Aiton) Reveal USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-27
NEBC: 00354260 Uvularia perfoliata Linnaeus USA: Massachusetts Medford: Pine Hill [Middlesex Fells Reservat... C. W. Swan 1881-5-22
Linaceae
NEBC: 00741220 Linum intercursum E. P. Bicknell USA: Massachusetts Nantucket: Nantucket C. W. Swan 1886
NEBC: 00741244 Linum medium texanum (Planchon) Fernald USA: Massachusetts Boston: W. B. [West Boston] Flats C. W. Swan 1881-9-8
NEBC: 00741245 Linum medium texanum (Planchon) Fernald USA: Massachusetts Boston: West Boston C. W. Swan 1881-9-8
NEBC: 00741246 Linum medium texanum (Planchon) Fernald USA: Massachusetts Boston: West Boston C. W. Swan 1884-7-15
GH: 00700878 Linum sulcatum Riddell USA: Massachusetts Winchester: Winchester C. W. Swan 1890-7-19
NEBC: 00700879 Linum sulcatum Riddell USA: Massachusetts Winchester: Winchester C. W. Swan 1890-7-19
GH: 00761208 Linum usitatissimum Linnaeus USA: Massachusetts Boston: Dorchester, Savin Hill C. W. Swan 1884-7-9
NEBC: 00761210 Linum usitatissimum Linnaeus USA: Massachusetts Boston: Dorchester, Savin Hill C. W. Swan 1884-7-9
Lycopodiaceae
NEBC: 00743544 Dendrolycopodium obscurum (Linnaeus) A. Haines USA: Massachusetts Pelham: Pelham C. W. Swan 1884-8-1
NEBC: 00743608 Dendrolycopodium sp. USA: Massachusetts Groton: Groton C. W. Swan 1885-8-25
NEBC: 00139508 Diphasiastrum tristachyum (Pursh) Holub USA: Massachusetts Concord: C. W. Swan 1890-7-24
NEBC: 00661293 Huperzia lucidula (Michaux) Trevisan USA: New Hampshire Tamworth: Tamworth C. W. Swan 1888-8-5
NEBC: 00661358 Huperzia lucidula (Michaux) Trevisan USA: Vermont Stowe: Stowe C. W. Swan 1884-7-28
NEBC: 00690564 Lycopodium clavatum Linnaeus USA: New Hampshire Tamworth: Tamworth Iron Works C. W. Swan 1888-8-24
NEBC: 00690701 Lycopodium clavatum Linnaeus USA: New Hampshire [Mount] Monadnock C. W. Swan 1883-8-10
NEBC: 00772692 Lycopodium clavatum Linnaeus USA: Massachusetts Westford: Westford C. W. Swan 1885
NEBC: 00743608 Lycopodium dendroideum Michaux USA: Massachusetts Groton: Groton C. W. Swan 1885-8-25
NEBC: 00743608 Lycopodium sp. USA: Massachusetts Groton: Groton C. W. Swan 1885-8-25
NEBC: 00632204 Spinulum annotinum (Linnaeus) A. Haines USA: New Hampshire Mount Monadnock C. W. Swan 1883-8-10
Lythraceae
NEBC: 01026286 Decodon verticillatus (Linnaeus) Elliott USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan
NEBC: 00717988 Rotala ramosior (Linnaeus) Koehne USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1886-7-28
Malvaceae
NEBC: 00660407 Hibiscus moscheutos Linnaeus USA: Massachusetts Concord River C. W. Swan 1882-7-31
NEBC: 00751305 Hibiscus trionum Linnaeus USA: Massachusetts Boston: Boston C. W. Swan 1886-9-14
NEBC: 00761399 Malva alcea Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-7-13
NEBC: 00679291 Malva parviflora Linnaeus USA: Massachusetts Lowell: Lowell, Chases' Mills C. W. Swan 1880-7-14
NEBC: 00679306 Sida spinosa Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-9-11
Mniaceae
NEBC: 00848028 Plagiomnium cuspidatum (Hedwig) T. J. Koponen USA: Massachusetts Brookline: Longwood C. W. Swan 1891-6-23
Moraceae
NEBC: 00761819 Morus alba Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1883-7-14
Myricaceae
NEBC: 00666756 Comptonia peregrina (Linnaeus) J. M. Coulter USA: Massachusetts Townsend: West Townsend C. W. Swan 1889-5-3
Oleaceae
NEBC: 00655909 Chionanthus virginicus Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan
NEBC: 01076659 Fraxinus nigra Marshall USA: Massachusetts Framingham: Framingham C. W. Swan 1885-8-29
NEBC: 01076827 Fraxinus pennsylvanica Marshall USA: Massachusetts Dracut: Dracut C. W. Swan 1883-8-13
NEBC: 00375237 Ligustrum vulgare Linnaeus USA: Massachusetts Boston: Dorchester, Williams St. C. W. Swan 1881-5-13
Onagraceae
NEBC: 01073709 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1880-7-14
NEBC: 01074804 Epilobium ciliatum Rafinesque USA: Massachusetts Boston: Dorchester C. W. Swan 1885-7-2
NEBC: 01057814 Epilobium strictum Muhlenberg USA: Maine Kennebunk: Kennebunk C. W. Swan 1885-8-7
NEBC: 00573869 Ludwigia alternifolia Linnaeus USA: Massachusetts Lowell: Lowell, Loverslane, Fort Hill C. W. Swan 1882-8-18
NEBC: 00816283 Oenothera parviflora Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1884-8-7
NEBC: 00816284 Oenothera parviflora Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1884-8-7
Orchidaceae
NEBC: 00741524 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: New Hampshire Tamworth: Tamworth Iron Works C. W. Swan 1888-8-5
AMES: 01052309 Malaxis unifolia Michaux USA: New Hampshire Tamworth: Tamworth Iron Works C. W. Swan 1888-8
NEBC: 01062560 Platanthera dilatata dilatata USA: New Hampshire Tamworth: Chocorua C. W. Swan 1888-8-5
NEBC: 01056294 Platanthera orbiculata (Pursh) Lindley USA: Vermont Stowe: Stowe, Bingham's Falls C. W. Swan 1884-7-29
NEBC: 01056385 Spiranthes cernua (Linnaeus) Richard USA: New Hampshire Tamworth: Tamworth C. W. Swan 1888-8
Orobanchaceae
NEBC: 00375680 Aphyllon uniflorum (Linnaeus) A. Gray USA: Massachusetts Milton: Blue Hill [Blue Hills Reservation] C. W. Swan 1884-5-30
NEBC: 00561443 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Dracut: Dracut C. W. Swan 1882-8-17
NEBC: 00630721 Epifagus virginiana (Linnaeus) W. P. C. Barton USA: New Hampshire Tamworth: Tamworth C. W. Swan 1888-8-28
NEBC: 00375680 Orobanche uniflora Linnaeus USA: Massachusetts Milton: Blue Hill [Blue Hills Reservation] C. W. Swan 1884-5-30
NEBC: 00731305 Orobanche uniflora Linnaeus USA: Massachusetts Boston: Dorchester, near Mt. Bowdoin C. W. Swan 1880-5-6
Papaveraceae
NEBC: 01014029 Fumaria officinalis Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-7-30
Pinaceae
NEBC: 00576364 Abies balsamea (Linnaeus) Miller USA: Massachusetts C. W. Swan 2664 1886-8-26
NEBC: 00576366 Abies balsamea (Linnaeus) Miller USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-27
Plantaginaceae
NEBC: 00655193 Cymbalaria muralis G. Gaertner USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-4
GH: 00078535 Gratiola aurea helveola Bartlett USA: Massachusetts Lowell: Swamp near Lowell C. W. Swan 1880
NEBC: 00650163 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Massachusetts Lowell: Lowell, Ayre's City C. W. Swan 1882-7-9
NEBC: 00592559 Plantago aristata Michaux USA: Massachusetts Boston: W. [West] Boston Dump C. W. Swan 1882-10-2
NEBC: 00685683 Plantago coronopus Linnaeus USA: Massachusetts Boston: Boston C. W. Swan 1886-9-14
NEBC: 00593666 Plantago major Linnaeus USA: New Hampshire Tamworth: Tamworth C. W. Swan 1888-8-22
NEBC: 00593729 Plantago major Linnaeus USA: Massachusetts Lowell: Lowell, "Dracut Heights," Centrevill... C. W. Swan 1889-10-9
NEBC: 00670336 Plantago rugelii Decaisne USA: Massachusetts Lowell: Lowell, "Dracut Heights," Centrevill... C. W. Swan 1889-10-9
NEBC: 00707131 Veronica americana Schweinitz ex Bentham USA: Massachusetts Westford: Westford, near Woollen-mills C. W. Swan 1884-9-15
NEBC: 00655367 Veronica longifolia Linnaeus USA: Massachusetts Chelmsford: N. [North] Chelmsford C. W. Swan 1885-9-13
NEBC: 00655546 Veronica officinalis Linnaeus USA: Massachusetts C. W. Swan 1882-7-2
NEBC: 00375651 Veronica peregrina Linnaeus USA: Massachusetts Milton: Blue Hill [Blue Hills Reservation] C. W. Swan 1884-5-30
NEBC: 00561770 Veronica peregrina Linnaeus USA: Massachusetts Brookline: Aspinwall Hill C. W. Swan 1882-5-28
NEBC: 00561769 Veronica peregrina Linnaeus USA: Massachusetts Boston: Dorchester, Lawrence Av. C. W. Swan 1881-6-19
NEBC: 00375651 Veronica peregrina xalapensis (Kunth) Pennell USA: Massachusetts Milton: Blue Hill [Blue Hills Reservation] C. W. Swan 1884-5-30
NEBC: 00729780 Veronicastrum virginicum (Linnaeus) Farwell USA: Connecticut Washington: Washington C. W. Swan 1887-8-12
Poaceae
NEBC: 00338251 Agrostis alba vulgaris G. Meyer USA: Massachusetts Beaver Brook Reservn. C. W. Swan 1894-7-6
NEBC: 00338251 Agrostis capillaris Linnaeus USA: Massachusetts Beaver Brook Reservn. C. W. Swan 1894-7-6
NEBC: 00878057 Agrostis hyemalis (Walter) Britton, Stearn & Poggenburg USA: Massachusetts Boston: West Boston Flats C. W. Swan 1881-6-27
NEBC: 01178332 Agrostis mertensii Trinius USA: Vermont Mount Mansfield C. W. Swan 1884-7-24
NEBC: 01178492 Agrostis perennans (Walter) Tuckerman USA: Massachusetts Andover: Andover, Haggetts Pond C. W. Swan 1880-8-6
NEBC: 01178517 Agrostis perennans (Walter) Tuckerman USA: Massachusetts Boston: W. [West] Roxbury, Glen Woods C. W. Swan 1881-9-19
NEBC: 00685769 Alopecurus myosuroides Hudson USA: Massachusetts Lowell: Lowell C. W. Swan 1883-9-6
NEBC: 00338411 Alopecurus pratensis Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00338415 Anthoxanthum odoratum Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00622892 Arrhenatherum elatius (Linnaeus) P. Beauvois ex J. Presl & C. Presl USA: Massachusetts Boston: W. [West] Roxbury, Williams St. C. W. Swan 1882-6-26
ECON: 00622991 Avena sativa Linnaeus USA: Massachusetts Gloucester: Gloucester C. W. Swan 1880-8-21
NEBC: 00622999 Avena sativa Linnaeus USA: Massachusetts Lowell: Lowell, F.R.R. [Fitchburg Railroad] C. W. Swan 1882-7-17
ECON: 00609080 Avena sativa Linnaeus USA: Massachusetts Boston: Boston, Danforth St. C. W. Swan 1882-9-18
NEBC: 01045278 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Massachusetts Lowell: Lowell C. W. Swan 1880-7-16
NEBC: 01045279 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Massachusetts Lowell: Lowell, Osgoods Woods [probably Ayre... C. W. Swan 1880-7-16
NEBC: 00609141 Briza media Linnaeus USA: Massachusetts Boston: Dorchester, Fields Corner C. W. Swan 1882-6-24
NEBC: 00880228 Bromus Linnaeus USA: Massachusetts Billerica: No. [North] Billerica C. W. Swan 1883-7-24
NEBC: 00880029 Bromus ciliatus Linnaeus USA: Massachusetts Chelmsford: Chelmsford, near Thomas's rock L... C. W. Swan 1882-8-1
NEBC: 00609783 Bromus commutatus Schrader USA: Massachusetts Boston: Dorchester C. W. Swan 1882-7-2
NEBC: 00609785 Bromus commutatus Schrader USA: Massachusetts Boston: Dorchester, Fields Corner C. W. Swan 1882-6-24
NEBC: 00613090 Bromus hordeaceus Linnaeus USA: Massachusetts Billerica: No. [North] Billerica C. W. Swan 1883-7-24
NEBC: 00613094 Bromus hordeaceus Linnaeus USA: Massachusetts Huntington: Huntington C. W. Swan 1882-6-8
NEBC: 00594269 Bromus japonicus Thunberg USA: Massachusetts Boston: Boston C. W. Swan 1892-7-4
NEBC: 00880147 Bromus latiglumis (Shear) Hitchcock USA: Massachusetts Tewksbury: Tewksbury, Trull Brook C. W. Swan 1882-9-1
NEBC: 00613228 Bromus secalinus Linnaeus USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1883-7-11
NEBC: 00595002 Bromus sterilis Linnaeus USA: Massachusetts Boston: Boston, near Children's Hospital [Hu... C. W. Swan 1885-6-10
NEBC: 01045531 Calamagrostis coarctata Eaton USA: Massachusetts Lowell: Lowell, Lover's Lane Fort Hill C. W. Swan 1882-8-18
NEBC: 00635546 Cenchrus longispinus (Hackel) Fernald USA: Massachusetts Dracut: Dracut C. W. Swan 1883-8-2
NEBC: 00878213 Cinna arundinacea Linnaeus USA: Massachusetts Westford: Westford C. W. Swan 1883-8-25
NEBC: 00835815 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-27
NEBC: 00338430 Dactylis glomerata Linnaeus USA: Massachusetts Beaver Brook Reservn. near Orchard St. C. W. Swan 1894-5-30
NEBC: 00609299 Dactylis glomerata Linnaeus USA: Massachusetts Boston: Roxbury C. W. Swan 1885-6-27
NEBC: 00879772 Danthonia allenii Austin USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-8-30
NEBC: 01174929 Danthonia compressa Austin USA: Massachusetts Ashby to W. Townsend C. W. Swan 1886-8-28
NEBC: 01174930 Danthonia compressa Austin USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-28
NEBC: 01178226 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Boston: Roxbury, Glen Rd. C. W. Swan 1880-9-30
NEBC: 00595125 Deschampsia caespitosa glauca (C. Hartman) C. Hartman USA: Massachusetts Lowell: Lowell, Merrimac River C. W. Swan 1882-7-20
NEBC: 00860382 Deschampsia flexuosa (Linnaeus) Trinius USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881-7-9
NEBC: 00338717 Dichanthelium acuminatum fasciculatum (Torrey) Freckmann & Lelong USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338722 Dichanthelium acuminatum implicatum (Scribner) Freckmann & Lelong USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00764779 Dichanthelium clandestinum (Linnaeus) Gould USA: Massachusetts Lowell: Lowell C. W. Swan 1882-6-29
NEBC: 00635739 Dichanthelium depauperatum (Muhlenberg) Gould USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881-7-23
NEBC: 01151061 Dichanthelium latifolium (Linnaeus) Harvill USA: Massachusetts Rockport: Rockport, Pidgeon Cove C. W. Swan 1881-7-15
NEBC: 01151126 Dichanthelium linearifolium (Scribner) Gould USA: Massachusetts C. W. Swan 1881-6-25
NEBC: 00339304 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Boston: Backbay Park C. W. Swan 1888-9-25
NEBC: 00875613 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Boston: Boston C. W. Swan 1886-9-30
NEBC: 00875614 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Boston: Boston C. W. Swan 1886-9-29
NEBC: 00689070 Digitaria filiformis (Linnaeus) Koeler USA: Massachusetts Lowell: Lowell C. W. Swan 1882-8-30
NEBC: 00609509 Digitaria ischaemum (Schreber) Muhlenberg USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 3592 1882-8-22
NEBC: 00609524 Digitaria ischaemum (Schreber) Muhlenberg USA: Massachusetts Boston: Dorchester, Lawrence Ave., C. W. Swan 60-2 1880-9-6
NEBC: 00594293 Eleusine indica (Linnaeus) Gaertner USA: Massachusetts Dracut: Lowell (Dracut dump) C. W. Swan 1884-8-6
NEBC: 00817061 Elymus canadensis Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1882-7-31
NEBC: 00817062 Elymus canadensis Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1882-7-31
NEBC: 00712062 Elymus macgregorii R.E. Brooks & J.J.N. Campb. USA: Massachusetts Lowell: Lowell, Merrimac R. [River] C. W. Swan 1882-7-20
NEBC: 00594561 Elymus repens (Linnaeus) Gould USA: Massachusetts Medford: Medford C. W. Swan 1878-6-20
NEBC: 00863199 Elymus trachycaulus (Link) Gould ex Shinners USA: Maine Kennebunk: Kennebunk C. W. Swan 1885-7-7
NEBC: 00863296 Elymus villosus Muhlenberg ex Willdenow USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-20
NEBC: 00855717 Eragrostis capillaris (Linnaeus) Nees USA: Massachusetts Lowell: Lowell, Ayer's City C. W. Swan 1882-8-20
NEBC: 00594755 Eragrostis minor Host USA: Massachusetts Westford: Westford, Woolen MIlls C. W. Swan 1880-8-22
NEBC: 00879145 Eragrostis pectinacea (Michaux) Steudel USA: Massachusetts Lowell: Lowell, "Little Canada" C. W. Swan 1883-9-6
NEBC: 00338643 Festuca elatior Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338643 Festuca elatior pratensis (Hudson) A. Gray USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00609922 Festuca rubra Linnaeus USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1881-6-17
NEBC: 00685779 Gastridium ventricosum (Gouan) Schinz & Thellung USA: Massachusetts Billerica: No. [North] Billerica C. W. Swan 1883-7-24
NEBC: 01149101 Glyceria grandis S. Watson USA: Massachusetts Brookline: Brookline, Pond Av. C. W. Swan 1881-6-22
NEBC: 00338554 Glyceria nervata (Willdenow) Trinius USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338554 Glyceria striata (Lamarck) Hitchcock USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00613778 Holcus lanatus Linnaeus USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1886-7-9
NEBC: 00733323 Hordeum murinum Linnaeus USA: Massachusetts Lowell: Lowell, Dracut dump C. W. Swan 1884-8-6
NEBC: 00359675 Leersia virginica Willdenow USA: Massachusetts Medford: Pine Hill. Middlesex Fells [Reserva... C. W. Swan 1880-8-19
NEBC: 00359676 Leersia virginica Willdenow USA: Massachusetts Medford: Pine Hill [Middlesex Fells Reservat... C. W. Swan 1883-7-18
NEBC: 00817705 Leersia virginica Willdenow USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1883-7-18
NEBC: 00359676 Leersia virginica ovata (Poiret) Fernald USA: Massachusetts Medford: Pine Hill [Middlesex Fells Reservat... C. W. Swan 1883-7-18
NEBC: 01047508 Leptochloa fascicularis (Lamarck) A. Gray USA: Massachusetts Billerica: Billerica, woollen-mills C. W. Swan 1885-9-18
NEBC: 01047509 Leptochloa fascicularis (Lamarck) A. Gray USA: Massachusetts Boston: Boston C. W. Swan 1887-9-17
NEBC: 00765952 Leptochloa panicea mucronata (Michaux) Nowack USA: Massachusetts Lowell: Lowell C. W. Swan 1883-9-6
NEBC: 00863746 Leymus mollis (Trinius) Pilger USA: Massachusetts Gloucester: Gloucester, E. [East] Point C. W. Swan 1881-7-23
NEBC: 00583086 Lolium multiflorum Lamarck USA: Massachusetts Lowell: Lowell (Dracut dump) C. W. Swan 1884-8-6
NEBC: 00864726 Muhlenbergia glomerata (Willdenow) Trinius USA: Massachusetts Bedford: Bedford C. W. Swan 1884-8-28
NEBC: 00864727 Muhlenbergia glomerata (Willdenow) Trinius USA: Massachusetts Bedford: Bedford C. W. Swan 1884-8-28
NEBC: 00722459 Muhlenbergia sobolifera (Muhlenberg ex Willdenow) Trinius USA: Connecticut Washington: Washington C. W. Swan 1887-8-12
NEBC: 01026938 Muhlenbergia sylvatica (Torrey) Torrey ex A. Gray USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-9-1
NEBC: 01174089 Muhlenbergia uniflora (Muhlenberg) Fernald USA: Massachusetts Lowell: Lowell C. W. Swan 1882-8-30
NEBC: 00338717 Panicum huachucae silvicola Hitchcock & Chase USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338722 Panicum implicatum Scribner USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338717 Panicum lanuginsoum Elliot USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338722 Panicum lanuginsoum Elliot USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338722 Panicum lindheimeri implicatum (Scribner) Fernald USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00338717 Panicum lindheimeri fasciculatum (Torrey) Fernald USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
ECON: 00583205 Panicum miliaceum Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-4
NEBC: 00583212 Panicum miliaceum Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1884-8-4
NEBC: 00339304 Panicum sphaerocarpon Elliott USA: Massachusetts Boston: Backbay Park C. W. Swan 1888-9-25
NEBC: 00853491 Panicum virgatum spissum Linder USA: Massachusetts West Gloucester C. W. Swan 1881-8-4
NEBC: 00855619 Paspalum setaceum muehlenbergii (Nash) D. Banks USA: Massachusetts Andover: Andover, Haggetts Pond C. W. Swan 1880-8-6
NEBC: 00611851 Phalaris arundinacea Linnaeus USA: Massachusetts Lowell: Lowell, Ayer's City C. W. Swan 1882-6-29
NEBC: 00611864 Phalaris arundinacea Linnaeus USA: Massachusetts Boston: Dorchester, Grove Hall C. W. Swan 1882-7-2
NEBC: 01150788 Piptatherum pungens (Torrey) Dorn USA: Massachusetts Chelmsford: Chelmsford, Lover's Land C. W. Swan 1882-6-6
NEBC: 00338631 Poa annua Linnaeus USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-5-26
NEBC: 00338632 Poa compressa Linnaeus USA: Massachusetts Beaver Brook [Reservation, Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00606301 Poa compressa Linnaeus USA: Massachusetts Lowell: Lowell (F.R.R.) [Fitchburg Railroad] C. W. Swan 1880-8-3
NEBC: 00606302 Poa compressa Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-8-3
ECON: 00741018 Poa fernaldiana Nannfeldt USA: Vermont Mount Mansfield C. W. Swan 1882-7-24
NEBC: 00338639 Poa pratensis Linnaeus USA: Massachusetts Beaver Brook Resrevn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00583728 Poa pratensis Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1881-6-12
NEBC: 00583733 Poa pratensis Linnaeus USA: Massachusetts Boston: Boston, Back Bay C. W. Swan 1881-6-2
NEBC: 00595656 Poa trivialis Linnaeus USA: Massachusetts Dedham: Dedham C. W. Swan 1882-6-17
NEBC: 00685802 Polypogon monspeliensis (Linnaeus) Desfontaines USA: Massachusetts Billerica: N. [North] Billerica, Woollen-mil... C. W. Swan 1883-7-24
NEBC: 00685887 Polypogon monspeliensis (Linnaeus) Desfontaines USA: Massachusetts Billerica: N. [North] Billerica, Woollen-mil... C. W. Swan 1885-9-18
NEBC: 00338643 Schedonorus pratensis (Hudson) P. Beauvois USA: Massachusetts Beaver Brook Reservn. [Belmont/Waltham] C. W. Swan 1894-7-6
NEBC: 00598131 Setaria italica (Linnaeus) P. Beauvois USA: Massachusetts Dracut: Dracut C. W. Swan 1883-8-1
NEBC: 00614276 Setaria viridis (Linnaeus) P. Beauvois USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-6
NEBC: 00614277 Setaria viridis (Linnaeus) P. Beauvois USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-6
NEBC: 00614278 Setaria viridis (Linnaeus) P. Beauvois USA: Massachusetts Lowell: Lowell C. W. Swan 1882-7-30
NEBC: 01175064 Spartina pectinata Link USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1880-7-29
NEBC: 00700209 Sphenopholis pensylvanica (Linnaeus) Hitchcock USA: Massachusetts Dedham: Dedham C. W. Swan 1882-6-17
NEBC: 01175196 Sporobolus cryptandrus A. Gray USA: Massachusetts Dracut: Dracut C. W. Swan 1883-8-2
NEBC: 00879471 Sporobolus vaginiflorus (Torrey) Alph. Wood USA: Massachusetts Bedford: Bedford C. W. Swan 1884-8-24
NEBC: 00879472 Sporobolus vaginiflorus (Torrey) Alph. Wood USA: Massachusetts Bedford: Bedford C. W. Swan 1884-8-24
NEBC: 00879609 Triplasis purpurea (Walter) Chapman USA: Massachusetts Boston: Dorchester C. W. Swan 1882-9-10
NEBC: 00614614 Vulpia myuros (Linnaeus) C. C. Gmelin USA: Massachusetts Billerica: N. [North] Billerica C. W. Swan 1883-7-24
NEBC: 00700308 Vulpia octoflora glauca (Nuttall) Fernald USA: Massachusetts Boston: West Roxbury C. W. Swan 3504 1881-6-5
Polemoniaceae
NEBC: 00592479 Phlox paniculata Linnaeus USA: Massachusetts Sudbury: Sudbury C. W. Swan 1885-9-2
Polygalaceae
NEBC: 00503021 Polygala verticillata Linnaeus USA: Massachusetts Dorchester: Dorchester C. W. Swan 1881-9-23
Polygonaceae
NEBC: 00759024 Fagopyrum esculentum Moench USA: Massachusetts Billerica: Billerica C. W. Swan 1882-8-26
NEBC: 00759025 Fagopyrum esculentum Moench USA: Massachusetts Billerica: Billerica C. W. Swan 1882-8-26
NEBC: 00648996 Polygonella articulata (Linnaeus) Meisner USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1885-9-20
NEBC: 00762218 Polygonum amphibium Linnaeus USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1885-9-20
NEBC: 00762223 Polygonum amphibium Linnaeus USA: Massachusetts Boston: W. [West] Roxbury C. W. Swan 1879-9-19
NEBC: 00552046 Polygonum hydropiperoides Michaux USA: Massachusetts Reading: Reading C. W. Swan 1888-9-5
NEBC: 00664898 Polygonum tenue Michaux USA: Massachusetts Boston: Boston C. W. Swan 1888-9-26
NEBC: 00759610 Rumex obtusifolius Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1880-7-27
Polytrichaceae
NEBC: 00522300 Atrichum angustatum (Bridel) Bruch & Schimper USA: Massachusetts Brookline: Longwood C. W. Swan 1891-5-23
NEBC: 00615717 Pogonatum urnigerum (Hedwig) P. Beauvois USA: New Hampshire Mt. Washington: [data not captured] C. W. Swan 1888
NEBC: 00917140 Polytrichastrum alpinum (Hedwig) G. L. Smith USA: New Hampshire Mt. Washington: [data not captured] C. W. Swan 1888
NEBC: 00917918 Polytrichum commune Hedwig USA: New Hampshire Chocorua: [data not captured] C. W. Swan 1888-8-14
NEBC: 00919138 Polytrichum piliferum Hedwig USA: New Hampshire Mt. Washington: [data not captured] C. W. Swan 1888
NEBC: 00919139 Polytrichum piliferum Hedwig USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1888-8-28
NEBC: 00919196 Polytrichum piliferum Hedwig USA: Massachusetts Brookline: Longwood C. W. Swan 1891-6-5
Portulacaceae
NEBC: 00759698 Portulaca grandiflora Hooker USA: Massachusetts Lowell: Lowell C. W. Swan 1883-8-8
Potamogetonaceae
NEBC: 00816877 Potamogeton bicupulatus Fernald USA: Massachusetts Bedford: Bedford C. W. Swan 1884-8-24
NEBC: 01009241 Potamogeton epihydrus Rafinesque USA: Massachusetts Bedford: Bedford C. W. Swan 1884-8-28
NEBC: 01009250 Potamogeton epihydrus Rafinesque USA: Massachusetts Dracut: Dracut, Long Pond C. W. Swan 1882-7-15
Pottiaceae
NEBC: 00521459 Weissia controversa Hedwig USA: New Hampshire [data not captured] C. W. Swan 1888-8-28
Ranunculaceae
NEBC: 01034401 Actaea rubra (Aiton) Willdenow USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1885-8-26
NEBC: 01034571 Anemone canadensis Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-5-24
NEBC: 00692478 Ranunculus flammula Linnaeus USA: Massachusetts Groton: Groton, Baddacook P. [Pond] C. W. Swan 1886-8-31
NEBC: 00697004 Ranunculus sceleratus Linnaeus USA: Massachusetts Brookline: Brookline, Pond Av. C. W. Swan 1880-5-25
GH: 00697007 Ranunculus sceleratus Linnaeus USA: Massachusetts Milton: Milton C. W. Swan 1885-6-28
NEBC: 00697617 Thalictrum amphibolum Greene USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-8-25
Rhytidiaceae
NEBC: 00900778 Rhytidiadelphus triquetrus (Hedwig) Warnstorf USA: New Hampshire Chocorua: [data not captured] C. W. Swan 1888-8-27
Rosaceae
NEBC: 00669554 Agrimonia parviflora Aiton USA: Connecticut Warren: Warren C. W. Swan 1887-8-19
GH: 00483901 Amelanchier canadensis (Linnaeus) Medikus USA: Massachusetts Brookline: Brookline C. W. Swan 1882-5-21
NEBC: 00744025 Amelanchier laevis Wiegand USA: Massachusetts Groton: Groton C. W. Swan 1882-6-7
GH: 00740426 Amelanchier laevis Wiegand USA: Massachusetts Brookline: Brookline C. W. Swan 1882-5-21
NEBC: 00674202 Aronia melanocarpa (Michaux) Elliott USA: Massachusetts C. W. Swan 1880-5-23
NEBC: 00674203 Aronia melanocarpa (Michaux) Elliott USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1882-8-13
NEBC: 00744603 Aronia prunifolia (Marshall) Rehder USA: Massachusetts Acton: Acton C. W. Swan 1885-9-5
NEBC: 00768240 Crataegus macracantha Loddiges ex Loudon USA: Connecticut Warren: Warren C. W. Swan 1887-8
NEBC: 00688902 Geum aleppicum strictum Fernald USA: Massachusetts Tewksbury: Tewksbury C. W. Swan 1883-7-10
NEBC: 00688903 Geum aleppicum strictum Fernald USA: Massachusetts Chelmsford: N. [North] Chelmsford C. W. Swan 1883-7-27
NEBC: 00724416 Geum canadense Jacquin USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1882-7-15
NEBC: 00724419 Geum canadense Jacquin USA: Massachusetts Tewksbury: Tewksbury, Andover road C. W. Swan 1882-7-17
NEBC: 00724427 Geum canadense Jacquin USA: Massachusetts Boston: Boston, Back Bay C. W. Swan 1880-8-21
NEBC: 00724604 Geum laciniatum Murray USA: Massachusetts Middlesex C. W. Swan 1885-9-7
NEBC: 00669667 Geum peckii Pursh USA: New Hampshire Mount Washington C. W. Swan
NEBC: 00565633 Geum rivale Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-6-19
NEBC: 00710473 Geum virginianum Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-7-12
NEBC: 00710556 Potentilla arguta Lehmann USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 773 1885-9-17
NEBC: 00710861 Potentilla egedii groenlandica (Trattinnick) Polunin USA: Massachusetts Gloucester: East Gloucester C. W. Swan 1881-6-17
NEBC: 00756300 Potentilla fruticosa (Linnaeus) Rydberg USA: Massachusetts Groton: Groton C. W. Swan 1883-8-25
NEBC: 00756305 Potentilla fruticosa (Linnaeus) Rydberg USA: Massachusetts Groton: Groton C. W. Swan
NEBC: 00673849 Prunus maritima Marshall USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-6
NEBC: 00673850 Prunus maritima Marshall USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-6
NEBC: 00742758 Prunus susquehanae Willdenow USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-6
NEBC: 00524796 Rosa micrantha Borrer ex Smith USA: Massachusetts Boston: Roxbury, near Glen Road C. W. Swan 1883-9-26
NEBC: 00703387 Rosa micrantha Borrer ex Smith USA: Massachusetts Boston: Roxbury, Glen Road C. W. Swan 1885-7-4
NEBC: 00644808 Rosa nitida Willdenow USA: Massachusetts Littleton: Littleton C. W. Swan 1882-8-11
NEBC: 00441519 Rosa palustris Marshall USA: Massachusetts Westford: Westford, Nabnasset Pond C. W. Swan 1880-7-7
NEBC: 00758271 Rosa virginiana Miller USA: Maine Kennebunk: Kennebunk C. W. Swan
NEBC: 00651168 Rubus hispidus Linnaeus USA: Massachusetts Westford: Westford C. W. Swan 1880-7-7
NEBC: 00651654 Rubus odoratus Linnaeus USA: Massachusetts Dracut: Dracut C. W. Swan 1883-7-19
Rubiaceae
NEBC: 00729857 Galium aparine Linnaeus USA: Massachusetts Boston: Brighton Av. C. W. Swan 1881-6-25
NEBC: 00866489 Galium tinctorium Linnaeus USA: Massachusetts Boston: Dorchester, O.C. RR. [Old Colony Rai... C. W. Swan 1882-9-13
Rutaceae
NEBC: 00771422 Ptelea trifoliata Linnaeus USA: Massachusetts Boston: Roxbury, Glen Road C. W. Swan 1883-9-26
Salicaceae
NEBC: 00659084 Populus tremuloides Michaux USA: Massachusetts Boston: Boston, Back of block, cor. [corner]... C. W. Swan 1894-4-15
NEBC: 00771968 Salix alba Linnaeus USA: Massachusetts Boston: Boston C. W. Swan 1889-5-15
NEBC: 00771978 Salix alba Linnaeus USA: Massachusetts Brookline: Brookline C. W. Swan 1882-5-28
NEBC: 00724995 Salix bebbiana Sargent USA: Massachusetts Cheshire: Cheshire C. W. Swan 1883-6-6
NEBC: 00710372 Salix bebbiana Sargent USA: Massachusetts Boston: Boston C. W. Swan 1884-5-15
NEBC: 00936155 Salix bebbiana Sargent USA: Massachusetts Boston: Boston C. W. Swan 1884-5-24
NEBC: 00756703 Salix discolor Muhlenberg USA: Massachusetts Brookline: Brookline, Longwood C. W. Swan 1884-5-17
NEBC: 00763069 Salix eriocephala Michaux USA: Massachusetts Lowell: Lowell C. W. Swan 1884-5-19
NEBC: 00763070 Salix eriocephala Michaux USA: Massachusetts Lowell: Lowell, near Hale's Brook C. W. Swan 1885-7-15
NEBC: 00769112 Salix eriocephala Michaux USA: Massachusetts Boston: Boston C. W. Swan 1884-5-15
NEBC: 00769113 Salix eriocephala Michaux USA: Massachusetts Boston: Boston C. W. Swan 1889-5-15
NEBC: 00769386 Salix humilis tristis (Aiton) Griggs USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-6-6
NEBC: 00769913 Salix humilis tristis (Aiton) Griggs USA: Massachusetts Chelmsford: Chelmsford C. W. Swan 1882-7-8
NEBC: 00653929 Salix lucida Muhlenberg USA: Massachusetts Boston: Boston C. W. Swan 1886-5-15
NEBC: 00769969 Salix nigra Marshall USA: Massachusetts Boston: Boston C. W. Swan 1884-6-13
NEBC: 00523395 Salix rubens F. v. P. v. Schrank USA: Massachusetts Boston: Boston C. W. Swan 1881-5-13
Saxifragaceae
NEBC: 00348812 Chrysosplenium americanum Schweinitz ex Hooker USA: Massachusetts Beaver Brook Reserv. [Belmont/Waltham] C. W. Swan 1894-6-26
NEBC: 00665070 Ribes americanum Miller USA: Massachusetts Marblehead: Marblehead C. W. Swan 1886-8-12
NEBC: 00730462 Ribes americanum Miller USA: Massachusetts Dracut: Dracut C. W. Swan 1883-5-30
NEBC: 00640076 Ribes americanum Miller USA: Massachusetts Belmont: Waverly C. W. Swan 1881-5-14
Scrophulariaceae
NEBC: 00642831 Scrophularia lanceolata Pursh USA: Massachusetts Chelmsford: Chelmsford, Lover's Lane C. W. Swan 1882-6-28
Selaginellaceae
NEBC: 00738019 Selaginella rupestris (Linnaeus) Spring USA: Massachusetts Groton: Groton C. W. Swan 1883-8-25
Solanaceae
NEBC: 00592263 Datura inoxia Miller USA: Massachusetts Swampscott: Swampscott C. W. Swan 1888
NEBC: 00598673 Lycium barbarum Linnaeus USA: Massachusetts East Gloucester C. W. Swan 1881-8-26
NEBC: 00610128 Nicandra physalodes (Linnaeus) Gaertner USA: Massachusetts Billerica: Billerica C. W. Swan 1882-8-26
NEBC: 00685577 Nicotiana bigelovii (Torrey) S. Watson USA: Massachusetts Lowell: Lowell C. W. Swan 1883-8-15
NEBC: 00630026 Physalis heterophylla Nees USA: Massachusetts Lowell: Lowell, Powder Mill Region C. W. Swan 1885-8-23
NEBC: 00685602 Physalis pubescens Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1884-9-11
NEBC: 00592211 Solanum rostratum Dunal USA: Massachusetts Lowell: Lowell C. W. Swan
Sparganiaceae
NEBC: 00667659 Sparganium americanum Nuttall USA: Massachusetts Hopkinton: Hopkinton, Woodville C. W. Swan 1885-9-4
NEBC: 00666567 Sparganium fluctuans (Morong) B. L. Robinson USA: Massachusetts Hopkinton: Hopkinton, Whitehall Pond C. W. Swan 1886-9-4
Sphagnaceae
NEBC: 00923799 Sphagnum palustre Linnaeus USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1888-8-19
NEBC: 00925235 Sphagnum squarrosum Crome USA: New Hampshire Chocorua: [no additional data] C. W. Swan 1888-9-14
Ulmaceae
NEBC: 00702723 Celtis occidentalis Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1883-8-17
NEBC: 00702741 Celtis occidentalis Linnaeus USA: Massachusetts Boston: Dorchester, N.Y. & N.E. R.R. [New Yo... C. W. Swan 1894-6-9
NEBC: 00702742 Celtis occidentalis Linnaeus USA: Massachusetts Boston: Dorchester,near Savin Hill C. W. Swan 1884-8-9
Urticaceae
NEBC: 00648125 Laportea canadensis (Linnaeus) Weddell USA: Massachusetts West Townsend to Ashby C. W. Swan 1886-8-28
NEBC: 00523650 Urtica dioica Linnaeus USA: Massachusetts Brookline: Brookline C. W. Swan 1882-6-25
Verbenaceae
NEBC: 00610009 Verbena bracteata Lagasca & Rodriguez USA: Massachusetts Lowell: Lowell C. W. Swan 1884-8-6
Vitaceae
NEBC: 00663901 Vitis aestivalis Michaux USA: Massachusetts Medford: Medford C. W. Swan 1885-7-8
NEBC: 00631502 Vitis aestivalis bicolor Deam USA: Massachusetts Lowell: Lowell, Fort Hill C. W. Swan 1885-8-26
NEBC: 00701798 Vitis novae-angliae Fernald (pro sp.) USA: Massachusetts Sudbury: Sudbury C. W. Swan 1885-9-2
NEBC: 00701799 Vitis novae-angliae Fernald (pro sp.) USA: Massachusetts Sudbury: Sudbury C. W. Swan
Xyridaceae
NEBC: 00875486 Xyris difformis Chapman USA: Massachusetts Bedford: Bedford C. W. Swan 1883-8-5
NEBC: 01024557 Xyris difformis Chapman USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00875487 Xyris difformis Chapman USA: Massachusetts Groton: Groton, Baddacook P. [Pond] C. W. Swan 1886-8-31