Aceraceae NEBC: 00772651 Acer pensylvanicum Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
Aizoaceae NEBC: 00761291 Mollugo verticillata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Alismataceae NEBC: 01032217 Alisma subcordatum Pursh USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01032690 Sagittaria latifolia Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01032691 Sagittaria latifolia Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Alliaceae NEBC: 00567420 Allium schoenoprasum Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
Amaranthaceae GH: 01929161 Amaranthus hypochondriacus Linnaeus USA: Colorado Taylor C. N. S. Horner 1899
Anacardiaceae NEBC: 00752445 Rhus copallinum latifolia Engler USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00752444 Rhus copallinum latifolia Engler USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00690887 Rhus glabra Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Apiaceae NEBC: 00483214 Angelica atropurpurea Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00483710 Cicuta bulbifera Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01050847 Cicuta maculata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00523877 Conium maculatum Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 01051075 Cryptotaenia canadensis (Linnaeus) de Candolle USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
NEBC: 01051491 Hydrocotyle americana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1882
NEBC: 01009536 Osmorhiza longistylis (Torrey) de Candolle USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01009537 Osmorhiza longistylis (Torrey) de Candolle USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01009085 Panax trifolius Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00483070 Pastinaca sativa Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00483454 Sanicula marilandica Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1873
NEBC: 01009653 Sium suave Walter USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00587049 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00523627 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Aquifoliaceae GH: 00767847 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00767863 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00767864 Ilex verticillata (Linnaeus) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1875
Araceae NEBC: 01010768 Arisaema triphyllum (Linnaeus) Schott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01010769 Arisaema triphyllum (Linnaeus) Schott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1890
NEBC: 01081987 Calla palustris Linnaeus USA: Massachusetts Boxford: Boxford Mass. ("Wild cat") C. N. S. Horner 1873
Araliaceae NEBC: 00816757 Aralia hispida Ventenat USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00282056 Aralia racemosa Linnaeus USA: New Hampshire Bristol: C. N. S. Horner
NEBC: 00282901 Aralia racemosa Linnaeus USA: Massachusetts Georgetown: C. N. S. Horner
Asclepiadaceae NEBC: 01035555 Asclepias amplexicaulis Smith USA: Massachusetts Groveland: Groveland C. N. S. Horner 1884
NEBC: 00572804 Asclepias incarnata pulchra (Ehrhart ex Willdenow) Woodson USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00572803 Asclepias incarnata pulchra (Ehrhart ex Willdenow) Woodson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00961067 Asclepias pumila (A. Gray) Vail USA: Colorado Near Parkdale C. N. S. Horner 1898
GH: 00961068 Asclepias pumila (A. Gray) Vail USA: Colorado Pueblo: Near Lake Minnequa C. N. S. Horner 1899-8
Aspidiaceae NEBC: 00727022 Polystichum acrostichoides (Michaux) Schott USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
NEBC: 00727023 Polystichum acrostichoides (Michaux) Schott USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
NEBC: 00634974 Polystichum acrostichoides (Michaux) Schott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00634975 Polystichum acrostichoides (Michaux) Schott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00634976 Polystichum acrostichoides (Michaux) Schott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00634977 Polystichum acrostichoides (Michaux) Schott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00627814 Polystichum ée (Spenner) Fée USA: New Hampshire Bethlehem: Bethlehem C. N. S. Horner
Aspleniaceae NEBC: 00681714 Asplenium platyneuron incisum (Howe ex Peck) B. L. Robinson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00681713 Asplenium platyneuron incisum (Howe ex Peck) B. L. Robinson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00681754 Asplenium ruta-muraria Linnaeus USA: Vermont Burlington: Burlington C. N. S. Horner 1875
NEBC: 00631542 Asplenium trichomanes Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Asteraceae NEBC: 00566935 Achillea millefolium Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00566936 Achillea millefolium Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00753299 Ageratina altissima (Linnaeus) R. M. King & H. Robinson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885
NEBC: 01037220 Ambrosia artemisiifolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01007083 Anaphalis margaritacea (Linnaeus) Bentham & Hooker f. USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 01023008 Antennaria plantaginifolia (Linnaeus) Hooker USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01023007 Antennaria plantaginifolia (Linnaeus) Hooker USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00566269 Arctium minus (Hill) Bernhardi USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00725618 Artemisia campestris caudata (Michaux) H. M. Hall & Clements USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00725620 Artemisia campestris caudata (Michaux) H. M. Hall & Clements USA: Massachusetts Salisbury: Salisbury C. N. S. Horner
NEBC: 01038061 Bidens vulgata Greene USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01923608 Brickellia grandiflora (Hooker) Nuttall USA: Colorado Glen Eyrie C. N. S. Horner 1898
NEBC: 01047486 Cyanus segetum Hill USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00564081 Erigeron annuus (Linnaeus) Persoon USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00834906 Erigeron canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01079277 Erigeron strigosus Muhlenberg ex Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00753386 Eupatorium hyssopifolium Linnaeus USA: Massachusetts Marshfield: Marshfield C. N. S. Horner
NEBC: 00753515 Eupatorium perfoliatum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00734546 Eupatorium rotundifolium Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01034283 Eupatorium sessilifolium Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 02190738 Eupatorium sessilifolium Linnaeus USA: Colorado [no additional data] C. N. S. Horner 1897
NEBC: 00568076 Eurybia macrophylla (Linnaeus) Cassini USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01052860 Euthamia graminifolia (Linnaeus) Nuttall USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01079725 Euthamia tenuifolia USA: Massachusetts Westfield: Westfield C. N. S. Horner
NEBC: 01053957 Gnaphalium uliginosum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01008087 Helianthus decapetalus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1876
NEBC: 01037965 Helianthus divaricatus Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 01037964 Helianthus divaricatus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1884
NEBC: 00587501 Hieracium aurantiacum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00833524 Hieracium paniculatum Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 01067402 Hieracium venosum Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner 1884
NEBC: 00637918 Inula helenium Linnaeus USA: Massachusetts Georgetown: [no additional data] C. N. S. Horner
NEBC: 01028034 Iva frutescens Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00680328 Krigia virginica (Linnaeus) Willdenow USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 01067658 Lactuca canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
GH: 02192459 Liatris ligulistylis (A. Nelson) K. Schumann USA: Colorado Near Manitou C. N. S. Horner 1899
GH: 02192803 Liatris punctata Hooker USA: Colorado Stanleys Ranch C. N. S. Horner
GH: 00009780 Liatris punctata coloradensis Gaiser USA: Colorado St. Marys C. N. S. Horner
NEBC: 00684758 Liatris scariosa novae-angliae Lunell USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01019257 Mikania scandens (Linnaeus) Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00575209 Nabalus albus (Linnaeus) Hooker USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00568737 Packera aurea (Linnaeus) A. Löve & D. Löve USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01008921 Packera öve (Muhlenberg ex Willdenow) W. A. Weber & Á. Löve USA: Massachusetts Boxford: Boxford C. N. S. Horner
GH: 01017572 Petasites frigidus palmatus (Aiton) Cronquist USA: Massachusetts Amherst: Amherst C. N. S. Horner
NEBC: 01037136 Pluchea odorata succulenta (Fernald) Cronquist USA: Massachusetts Rowley: Rowley C. N. S. Horner 1878
NEBC: 01023635 Pseudognaphalium obtusifolium (Linnaeus) Hilliard & B. L. Burtt USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00637034 Rudbeckia hirta pulcherrima Farwell USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00718468 Scorzoneroides autumnalis (Linnaeus) Moench USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01079852 Sericocarpus asteroides (Linnaeus) Britton, Sterns & Poggenburg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01077113 Sericocarpus linifolius (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01077274 Solidago arguta Aiton USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 01077275 Solidago arguta Aiton USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00553178 Solidago bicolor Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01054192 Solidago caesia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01055237 Solidago canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01055517 Solidago flexicaulis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01054433 Solidago gigantea Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1877
NEBC: 01054434 Solidago gigantea Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01054756 Solidago juncea Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01063327 Solidago nemoralis Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01064009 Solidago odora Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00501149 Solidago rugosa Miller USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01064569 Solidago sempervirens Linnaeus USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 01064722 Solidago speciosa Nuttall USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 01056983 Solidago uliginosa Nuttall USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01056984 Solidago uliginosa Nuttall USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00637443 Sonchus asper (Linnaeus) Hill USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
NEBC: 00637447 Sonchus asper (Linnaeus) Hill USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1879
NEBC: 00697335 Symphyotrichum novae-angliae (Linnaeus) G. L. Nesom USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00574580 Symphyotrichum patens (Aiton) G. L. Nesom USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01014637 Symphyotrichum subulatum (Michaux) G. L. Nesom USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 01016126 Symphyotrichum undulatum (Linnaeus) G. L. Nesom USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00718772 Tanacetum vulgare Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00626326 Taraxacum officinale F. H. Wiggers USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00718690 Tragopogon pratensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00735518 Tripleurospermum inodorum (L.) USA: Maine Eastport: Eastport C. N. S. Horner
NEBC: 00577052 Tussilago farfara Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00735536 Verbesina exauriculata (Cav.) Benth. & Hook. USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00691777 Xanthium strumarium canadense (Mill.) Torr. & A. Gray USA: Massachusetts Newbury: Newbury C. N. S. Horner
Athyriaceae NEBC: 00678390 Athyrium filix-femina angustum (Willdenow) G. Lawson USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
NEBC: 00678391 Athyrium filix-femina angustum (Willdenow) G. Lawson USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
NEBC: 00733663 Athyrium filix-femina angustum (Willdenow) G. Lawson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00733664 Athyrium filix-femina angustum (Willdenow) G. Lawson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00733665 Athyrium filix-femina angustum (Willdenow) G. Lawson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00668610 Cystopteris fragilis (Linnaeus) Bernhardi USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00662554 Gymnocarpium dryopteris (Linnaeus) Newman USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00662556 Gymnocarpium dryopteris (Linnaeus) Newman USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1896
NEBC: 00551847 Matteuccia struthiopteris (Linnaeus) Todaro USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00746986 Onoclea sensibilis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00746985 Onoclea sensibilis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00746987 Onoclea sensibilis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00746988 Onoclea sensibilis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1875
NEBC: 00746989 Onoclea sensibilis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Balsaminaceae NEBC: 00484276 Impatiens capensis Meerburgh USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Berberidaceae NEBC: 00606690 Berberis vulgaris Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00697898 Caulophyllum thalictroides (Linnaeus) Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1873
NEBC: 00697899 Caulophyllum thalictroides (Linnaeus) Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00697900 Caulophyllum thalictroides (Linnaeus) Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Betulaceae NEBC: 00657609 Alnus viridis crispa (Aiton) Turrill USA: New Hampshire Conway: Conway C. N. S. Horner
NEBC: 00678954 Betula nigra Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
A: 00678956 Betula nigra Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
A: 00678957 Betula nigra Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1881-5-8
Blechnaceae NEBC: 00628321 Woodwardia areolata (Linnaeus) T. Moore USA: Massachusetts Nantucket: Nantucket C. N. S. Horner
NEBC: 00628436 Woodwardia virginica (Linnaeus) Smith USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Boraginaceae NEBC: 01038378 Bulgossoides arvensis (Linnaeus) I. M. Johnston USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00718960 Cynoglossum officinale Linnaeus USA: Massachusetts Topsfield: Topsfield C. N. S. Horner
NEBC: 00655277 Echium vulgare Linnaeus USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00638545 Hackelia virginiana (Linnaeus) I. M. Johnston USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00735045 Lycopsis arvensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00577181 Myosotis scorpioides Linnaeus USA: New Hampshire Plymouth: Plymouth C. N. S. Horner
NEBC: 00656730 Myosotis sylvatica Hoffmann USA: Rhode Island C. N. S. Horner
NEBC: 00716812 Myosotis verna Nuttall USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00633132 Symphytum officinale Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
Brassicaceae GH: 00992544 Arabidopsis lyrata (Linnaeus) O'Kane & Al-Shehbaz USA: Illinois [data not captured] C. N. S. Horner 1883-5
NEBC: 00617018 Brassica nigra (Linnaeus) W. D. J. Koch USA: Vermont Georgetown C. N. S. Horner
NEBC: 01023392 Cakile edentula (Bigelow) Hooker USA: Massachusetts Salem: Salem C. N. S. Horner
GH: 01098173 Capsella bursa-pastoris (Linnaeus) Medikus USA: Colorado Vineland C. N. S. Horner
NEBC: 00617394 Cardamine pratensis palustris Wimm. & Grab. USA: Vermont Georgetown C. N. S. Horner
GH: 01538295 Erysimum capitatum argillosum (Greene) R. J. Davis USA: Colorado Sheldon [?] C. N. S. Horner 1898
NEBC: 00606926 Hesperis matronalis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00580006 Nasturtium microphyllum (Boenninghausen) Reichenbach USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00582460 Raphanus raphanistrum Linnaeus USA: Vermont Georgetown C. N. S. Horner
NEBC: 00675315 Rorippa palustris (Linnaeus) Besser USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00733274 Rorippa palustris hispida (Desvaux) Rydberg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Caesalpiniaceae NEBC: 00747269 Chamaecrista nictitans (Linnaeus) Moench USA: Massachusetts Salisbury: Salisbury C. N. S. Horner 1885
NEBC: 00747270 Chamaecrista nictitans (Linnaeus) Moench USA: Massachusetts Salisbury: Salisbury C. N. S. Horner
Campanulaceae NEBC: 00820192 Campanula aparinoides uliginosa (Rydberg) Gleason USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00820193 Campanula aparinoides uliginosa (Rydberg) Gleason USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00685895 Campanula glomerata Linnaeus USA: Vermont Danvers C. N. S. Horner
NEBC: 00685894 Campanula glomerata Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
GH: 01795705 Campanula parryi A. Gray USA: Colorado Trinchera Cr. C. N. S. Horner 1899
GH: 01795707 Campanula parryi A. Gray USA: Colorado Trinchara C. N. S. Horner 1899
NEBC: 00820483 Campanula rotundifolia Linnaeus USA: Massachusetts Newburyport: Newburyport C. N. S. Horner
NEBC: 00753008 Triodanis perfoliata (Linnaeus) Nieuwland USA: Massachusetts Rowley: Rowley C. N. S. Horner
Cannabaceae NEBC: 00586133 Humulus lupulus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Capparaceae GH: 01872288 Peritoma serrulata (Pursh) de Candolle USA: Colorado Pueblo: Lake Minnequa C. N. S. Horner 1899
GH: 01872296 Peritoma serrulata (Pursh) de Candolle USA: Colorado Pueblo etc C. N. S. Horner 1898
Caprifoliaceae NEBC: 00682167 Diervilla lonicera Miller USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00691266 Linnaea borealis americana (Forbes) Rehder USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 00691267 Linnaea borealis americana (Forbes) Rehder USA: Massachusetts West Botford C. N. S. Horner
NEBC: 00633456 Lonicera sempervirens Linnaeus USA: Massachusetts West Newbury: West Newbury C. N. S. Horner
GH: 02037764 Lonicera sp. USA: Colorado North Cheyenne Canon C. N. S. Horner
NEBC: 00721084 Sambucus nigra canadensis (L.) R. Bolli USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00680239 Triosteum aurantiacum E. P. Bicknell USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00702189 Viburnum acerifolium Linnaeus USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00579471 Viburnum dentatum lucidum Aiton USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00685320 Viburnum opulus trilobum (Marsh.) Clausen USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00685319 Viburnum opulus trilobum (Marsh.) Clausen USA: Massachusetts Rowley: Rowley C. N. S. Horner
Caryophyllaceae NEBC: 00581137 Agrostemma githago Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00700079 Minuartia groenlandica (Retzius) Ostenfeld USA: New Hampshire Mount Washington C. N. S. Horner 1886
NEBC: 00755525 Moehringia lateriflora (Linnaeus) Fenzl USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00728054 Paronychia argyrocoma albimontana Fernald USA: New Hampshire White Mountains C. N. S. Horner
NEBC: 00728072 Paronychia argyrocoma albimontana Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00586001 Stellaria media (Linnaeus) Villars USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Chenopodiaceae NEBC: 00732168 Chenopodium simplex (Torrey) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Cistaceae NEBC: 00712697 Crocanthemum bicknellii (Fernald) Janchen USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00750405 Hudsonia tomentosa Nuttall USA: Massachusetts Plum Island C. N. S. Horner
NEBC: 00573733 Lechea intermedia Leggett ex Britton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Commelinaceae NEBC: 00699952 Lechea mucronata (do not use) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00567784 ohiensis USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Convolvulaceae GH: 02055743 Convolvulus arvensis Linnaeus USA: Colorado Wray C. N. S. Horner 1898-7-1
NEBC: 00725028 Cuscuta gronovii Willdenow ex Roemer & Schultes USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00725029 Cuscuta gronovii Willdenow ex Roemer & Schultes USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1892
GH: 02042119 Ipomoea lacunosa Linnaeus USA: Colorado [no additional data] C. N. S. Horner 1899
Cornaceae NEBC: 00767097 Cornus amomum Miller USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00767101 Cornus amomum Miller USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00713061 Cornus canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
Cucurbitaceae NEBC: 00552916 Echinocystis lobata (Michaux) Torrey & A. Gray USA: New Hampshire Franklin: Franklin C. N. S. Horner 1882
Cyperaceae NEBC: 01182819 Bulbostylis capillaris (Linnaeus) Kunth ex C. B. Clarke USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00216037 Carex aquatilis Wahlenberg USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00222059 Carex cephalophora Muhlenberg USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00228730 Carex cryptolepis Mackenzie USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00232830 Carex echinata echinata USA: Massachusetts Georgetown: C. N. S. Horner 1883
NEBC: 00241153 Carex folliculata Linnaeus USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00241649 Carex gracillima Schweinitz USA: Massachusetts Groveland: C. N. S. Horner
NEBC: 00299112 Carex intumescens Rudge USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00868814 Carex laxiflora Lamarck USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00808470 Carex lurida Wahlenberg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00807063 Carex nigra (Linnaeus) Reichard USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00807894 Carex pallescens Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00854599 Carex pellita Muhlenberg ex Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00854769 Carex pensylvanica Lamarck USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00714596 Carex scoparia Schkuhr ex Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00874362 Carex stipata Muhlenberg ex Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01059775 Carex tribuloides Wahlenberg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00766608 Carex trisperma Dewey USA: Massachusetts Georgetown: Georgetown, Thurlows woods C. N. S. Horner
NEBC: 01043639 Cyperus dentatus Torrey USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
NEBC: 01043789 Cyperus diandrus Torrey USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01047238 Cyperus strigosus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00672267 Dulichium arundinaceum (Linnaeus) Britton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1881
NEBC: 00770918 Eleocharis elliptica Kunth USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00770919 Eleocharis elliptica Kunth USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
GH: 00714275 Eleocharis obtusa (Willdenow) Schultes USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00714283 Eleocharis obtusa (Willdenow) Schultes USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01060260 Eriophorum alpinum Linnaeus USA: Massachusetts South Georgetown C. N. S. Horner 1885
NEBC: 01060383 Eriophorum gracile W. D. J. Koch ex Roth USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01061082 Eriophorum virginicum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01042079 Eriophorum viridicarinatum (Engelmann) Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
NEBC: 00892838 Rhynchospora alba (Linnaeus) Vahl USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00807169 Rhynchospora capitellata (Michaux) Vahl USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01160238 Scirpus cyperinus (Linnaeus) Kunth USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00638690 Scirpus hallii A. Gray USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00892174 Scirpus hattorianus Makino USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00854134 Scirpus tabernaemontani C. C. Gmelin USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
NEBC: 01161659 Scirpus verecundus Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1884
Dennstaedtiaceae NEBC: 00663058 Dennstaedtia punctilobula (Michaux) T. Moore USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Droseraceae NEBC: 00741829 Drosera intermedia Hayne USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00741901 Drosera intermedia Hayne USA: Massachusetts Nantucket: Nantucket C. N. S. Horner 1885
NEBC: 00754512 Drosera rotundifolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00754510 Drosera rotundifolia Linnaeus USA: Massachusetts Newburyport: Newburyport C. N. S. Horner 1873
Dryopteridaceae NEBC: 00667321 Dryopteris boottii (Tuckerman) Underwood USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00708941 Dryopteris carthusiana (Villars) H. P. Fuchs USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00708942 Dryopteris carthusiana (Villars) H. P. Fuchs USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00704370 Dryopteris cristata (Linnaeus) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00636022 Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray USA: Massachusetts C. N. S. Horner 1875
NEBC: 00636029 Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00636030 Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00636306 Dryopteris marginalis (Linnaeus) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00636307 Dryopteris marginalis (Linnaeus) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Equisetaceae NEBC: 00674397 Equisetum arvense Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00674536 Equisetum fluviatile Linnaeus USA: Massachusetts West Newbury: West Newbury C. N. S. Horner
NEBC: 00694053 Equisetum hyemale affine (Engelmann) A. A. Eaton USA: Massachusetts Haverhill: Bradford C. N. S. Horner
NEBC: 00694054 Equisetum hyemale affine (Engelmann) A. A. Eaton USA: Massachusetts Newburyport: Newburyport C. N. S. Horner
NEBC: 00654112 Equisetum sylvaticum Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
Ericaceae GH: 00387819 Arctostaphylos uva-ursi (Linnaeus) Sprengel USA: Massachusetts Georgetown: C. N. S. Horner
GH: 00387819 Arctostaphylos uva-ursi coactilis Fernald & J. F. Macbride USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00517813 Epigaea repens Linnaeus USA: Massachusetts Gloucester: Gloucester C. N. S. Horner
NEBC: 00447942 Gaultheria procumbens Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
NEBC: 00461148 Gaylussacia baccata (Wangenheim) K. Koch USA: Massachusetts Georgetown: georgetown C. N. S. Horner
NEBC: 00484691 Kalmia angustifolia Linnaeus USA: Massachusetts North Andover: North Andover C. N. S. Horner 1880
NEBC: 00484692 Kalmia angustifolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00553777 Monotropa uniflora Linnaeus USA: Massachusetts Marden's woods C. N. S. Horner
NEBC: 00553775 Monotropa uniflora Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01719974 Orthilia secunda (Linnaeus) House USA: Colorado Wagon creek C. N. S. Horner
NEBC: 00563787 Pyrola chlorantha Swartz USA: Massachusetts Georgetown: Georgetown, Littles grove C. N. S. Horner
NEBC: 01075143 Rhododendron canadense (Linnaeus) Torrey USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01074324 Rhododendron groenlandicum (Oeder) Kron & Judd USA: Massachusetts Gloucester: Gloucester (Magnolia woods) C. N. S. Horner
A: 01074333 Rhododendron groenlandicum (Oeder) Kron & Judd USA: Massachusetts Concord: Concord C. N. S. Horner
NEBC: 00770454 Rhododendron viscosum (Linnaeus) Torrey USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Eriocaulaceae NEBC: 00855268 Eriocaulon aquaticum (Hill) Druce USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Euphorbiaceae NEBC: 01069433 Acalypha virginica Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00699040 Chamaesyce maculata Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Fabaceae NEBC: 00562291 Amphicarpaea bracteata (Linnaeus) Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00747451 Apios americana Medikus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00747575 Baptisia tinctoria (Linnaeus) Ventenat USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
NEBC: 00586239 Colutea arborescens Linnaeus USA: Massachusetts Danvers: Danvers C. N. S. Horner
NEBC: 00747797 Crotalaria sagittalis Linnaeus USA: Connecticut C. N. S. Horner
GH: 01921348 Dalea purpurea Ventenat USA: Colorado Colo. C. N. S. Horner
GH: 01921343 Dalea purpurea Ventenat USA: Colorado [no additional data] C. N. S. Horner 1898
NEBC: 00747934 Desmodium canadense (Linnaeus) de Candolle USA: Massachusetts Groveland: Groveland C. N. S. Horner 1880
NEBC: 00654412 Desmodium glutinosum (Muhlenberg ex Willdenow) Alph. Wood USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1881
NEBC: 00558546 Desmodium nudiflorum (Linnaeus) de Candolle USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1884
NEBC: 00711220 Desmodium obtusum (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00639110 Desmodium perplexum B. G. Schubert USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885
NEBC: 00591535 Genista tinctoria Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00643354 Lathyrus palustris Linnaeus USA: Massachusetts Topsfield: Topsfield C. N. S. Horner
NEBC: 00739834 Lespedeza capitata Michaux USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00639445 Lespedeza frutescens (Linnaeus) Hornemann USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00639623 Lespedeza violacea (Linnaeus) Persoon USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1878
NEBC: 00565312 Lupinus perennis Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00534321 Medicago lupulina Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00534320 Medicago lupulina Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00534440 Medicago polymorpha Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 6
NEBC: 00534441 Medicago polymorpha Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885
NEBC: 00534442 Medicago polymorpha Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885
NEBC: 00534443 Medicago polymorpha Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00534515 Medicago sativa Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
NEBC: 00534679 Melilotus albus Medikus USA: Vermont Georgetown C. N. S. Horner 1880
GH: 02132852 Oxytropis lambertii Pursh USA: Colorado Wagon cr. C. N. S. Horner 1898
GH: 02131414 Oxytropis sericea Nuttall USA: Colorado La Veta: [no additional data] C. N. S. Horner 1899
NEBC: 00580324 Robinia pseudoacacia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1881
NEBC: 00534776 Robinia viscosa Ventenat USA: Vermont Georgetown C. N. S. Horner
GH: 02135197 Robinia viscosa Ventenat USA: Colorado Webster Canon, Colo. C. N. S. Horner
NEBC: 00739963 Strophostyles helvola (Linnaeus) Elliott USA: Massachusetts Nantucket: Nantucket C. N. S. Horner
NEBC: 00501579 Trifolium arvense Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00586439 Trifolium campestre Schreber USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00586655 Trifolium hybridum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00586508 Trifolium hybridum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00586747 Trifolium incarnatum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
NEBC: 00586748 Trifolium incarnatum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00504787 Trifolium pratense Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00643511 Trifolium tomentosum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
NEBC: 00643512 Trifolium tomentosum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
GH: 02344449 Trifolium wormskioldii Lehmann USA: Colorado Colorado City C. N. S. Horner 1899
NEBC: 00591749 Vicia sativa Linnaeus USA: Massachusetts Topsfield: Topsfield C. N. S. Horner
Fagaceae NEBC: 00746352 Fagus grandifolia Ehrhart USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00662117 Quercus alba Linnaeus USA: Massachusetts West Newbury: West Newbury C. N. S. Horner
NEBC: 00695274 Quercus ilicifolia Wangenheim USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00676048 Quercus prinoides Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Gentianaceae NEBC: 00726615 Gentiana clausa Rafinesque USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00726614 Gentiana clausa Rafinesque USA: Massachusetts Groveland: Groveland C. N. S. Horner 1886
NEBC: 00770325 Gentianella quinquefolia (Linnaeus) Small USA: Connecticut Litchfield: Litchfield C. N. S. Horner
NEBC: 00726744 Gentianopsis crinita (Froelich) Ma USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
GH: 02166186 Gentianopsis thermalis (Kuntze) Iltis USA: Colorado West Cliff, Wet Mt. valley C. N. S. Horner 1898
GH: 02166185 Gentianopsis thermalis (Kuntze) Iltis USA: Colorado [no additional data] C. N. S. Horner 1898
NEBC: 00574812 Menyanthes trifoliata minor Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00775544 Sabatia kennedyana Fernald USA: Massachusetts Taunton: Taunton C. N. S. Horner 1883
Geraniaceae NEBC: 00761064 Erodium cicutarium (Linnaeus) L'Heritier ex Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01863743 Geranium atropurpureum A. Heller USA: Colorado Canon City C. N. S. Horner
Hamamelidaceae NEBC: 00640484 Hamamelis virginiana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Hypericaceae NEBC: 00773137 Hypericum ellipticum Hooker USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00504514 Hypericum gentianoides (Linnaeus) Britton, Sterns & Poggenburg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00629075 Hypericum mutilum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00629077 Hypericum mutilum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00765260 Hypericum perforatum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00774713 Hypericum punctatum Lamarck USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00760002 Triadenum virginicum (Linnaeus) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00760062 Triadenum virginicum (Linnaeus) Rafinesque USA: Massachusetts Taunton: Taunton C. N. S. Horner
Iridaceae NEBC: 00463374 Iris prismatica Pursh USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00894090 Sisyrinchium montanum crebrum Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Juncaceae NEBC: 01025692 Juncus balticus littoralis (Engelmann) Snogerup USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01174886 Juncus bufonius Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00879977 Juncus canadensis J. Gay ex Laharpe USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00879978 Juncus canadensis J. Gay ex Laharpe USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00835917 Juncus effusus solutus Fernald & Wiegand USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01150251 Juncus tenuis Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
NEBC: 00865312 Luzula multiflora (Ehrhart) Lejeune USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Lamiaceae NEBC: 00696409 Collinsonia canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00696410 Collinsonia canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00685119 Galeopsis bifida Boenninghausen USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00685118 Galeopsis bifida Boenninghausen USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00562559 Glechoma hederacea Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00562560 Glechoma hederacea Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00505828 Hedeoma pulegioides (Linnaeus) Persoon USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00735000 Hyssopus officinalis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00558294 Leonurus cardiaca Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00749156 Marrubium vulgare Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01551075 Marrubium vulgare Linnaeus USA: Colorado Garden of the Gods C. N. S. Horner
NEBC: 00751993 Melissa officinalis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00751992 Melissa officinalis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01018212 Mentha canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01018213 Mentha canadensis Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 01018372 Mentha gentilis Linnaeus USA: Connecticut Litchfield: Litchfield C. N. S. Horner
NEBC: 00749079 Mentha spicata Linnaeus USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 00749078 Mentha spicata Linnaeus USA: Massachusetts North Andover: North Andover C. N. S. Horner
NEBC: 00642114 Monarda fistulosa mollis (Linnaeus) Bentham USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00642115 Monarda fistulosa mollis (Linnaeus) Bentham USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00591273 Nepeta cataria Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00591254 Origanum vulgare Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00591154 Physostegia virginiana (Linnaeus) Bentham USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00751837 Prunella vulgaris lanceolata (W. P. C. Barton) Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00642196 Pycnanthemum incanum (Linnaeus) Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
NEBC: 00642252 Pycnanthemum muticum (Michaux) Persoon USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00696686 Pycnanthemum muticum (Michaux) Persoon USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00648615 Pycnanthemum tenuifolium Schrader USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00686207 Scutellaria galericulata Linnaeus USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00762357 Scutellaria lateriflora Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00602449 Stachys palustris Linnaeus USA: Massachusetts C. N. S. Horner
GH: 01699484 Stachys pilosa Nuttall USA: Colorado Fort Garland C. N. S. Horner
GH: 01699487 Stachys pilosa Nuttall USA: Colorado Canon City C. N. S. Horner
NEBC: 00612482 Thymus ovatus Miller USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00612482 Thymus pulegioides Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00612482 Thymus vulgaris Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00686690 Trichostema dichotomum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Lentibulariaceae NEBC: 00568209 Utricularia cornuta Michaux USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00731725 Utricularia intermedia Hayne USA: Massachusetts Haverhill: Bradford, Little Pond C. N. S. Horner
NEBC: 00731724 Utricularia intermedia Hayne USA: Massachusetts Haverhill: Bradford, Little Pond C. N. S. Horner
NEBC: 00731723 Utricularia intermedia Hayne USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00664626 Utricularia vulgaris macrorhiza (L. LeConte) R. T. Clausen USA: Massachusetts Haverhill: Bradford, Little Pond C. N. S. Horner
Liliaceae NEBC: 00560533 Clintonia borealis (Aiton) Rafinesque USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00880582 Erythronium americanum Ker Gawler USA: Massachusetts West Newbury: West Newbury C. N. S. Horner
NEBC: 00673341 Lilium canadense Linnaeus USA: Massachusetts Haverhill: Haverhill C. N. S. Horner
NEBC: 00505490 Maianthemum canadense Desfontaines USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00868177 Maianthemum racemosum (Linnaeus) Link USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01182875 Maianthemum stellatum (Linnaeus) Link USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00564218 Ornithogalum umbellatum Linnaeus USA: Massachusetts Byfield: C. N. S. Horner
NEBC: 01049081 Polygonatum pubescens (Willdenow) Pursh USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00575894 Trillium cernuum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00575895 Trillium cernuum Linnaeus USA: Massachusetts West Botford C. N. S. Horner
NEBC: 00869321 Trillium erectum Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00810777 Uvularia perfoliata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00810778 Uvularia perfoliata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00869895 Veratrum viride Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Linaceae NEBC: 00700831 Linum striatum Walter USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00700832 Linum striatum Walter USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00700837 Linum striatum Walter USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Lobeliaceae NEBC: 00820932 Lobelia dortmanna Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00698849 Lobelia inflata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Lycopodiaceae NEBC: 00738291 Dendrolycopodium obscurum (Linnaeus) A. Haines USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1879
NEBC: 00214203 Diphasiastrum digitatum (Dillenius ex A. Braun) Holub USA: Massachusetts West Newbury: Byfield C. N. S. Horner 1882
NEBC: 00661404 Huperzia lucidula (Michaux) Trevisan USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00690685 Lycopodium clavatum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1881
NEBC: 00772747 Lycopodium lagopus (Laestadius ex C. Hartman) G. Zinserling ex Kuzeneva USA: Massachusetts Boxford: Boxford C. N. S. Horner 1881
NEBC: 00742410 Spinulum annotinum (Linnaeus) A. Haines USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
Lythraceae NEBC: 01057171 Decodon verticillatus (Linnaeus) Elliott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1883
NEBC: 00612344 Lythrum hyssopifolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1881
NEBC: 00577374 Lythrum salicaria Linnaeus USA: Massachusetts West Danvers C. N. S. Horner
NEBC: 00577375 Lythrum salicaria Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1882-7-22
NEBC: 00577382 Lythrum salicaria Linnaeus USA: Massachusetts West Peabody C. N. S. Horner
Malvaceae NEBC: 00751240 Abutilon theophrasti Medikus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 02199066 Sidalcea neomexicana A. Gray USA: Colorado West Cliff. C. N. S. Horner 1898
GH: 02199343 Sphaeralcea angustifolia (Cavanilles) G. Don USA: Colorado Placer C. N. S. Horner 1898
GH: 02199509 Sphaeralcea coccinea (Nuttall) Rydberg USA: Colorado Walsenburg C. N. S. Horner 1899
GH: 02199508 Sphaeralcea coccinea (Nuttall) Rydberg USA: Colorado Pueblo: Fairmount Park C. N. S. Horner 1894
Marsileaceae NEBC: 00579732 Marsilea quadrifolia Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
Melastomataceae NEBC: 01069589 Rhexia virginica Linnaeus USA: Massachusetts Danvers: Danvers C. N. S. Horner
Moraceae A: 01105926 Morus alba Linnaeus USA: Massachusetts Georgetown: [no additional data] C. N. S. Horner 1881-5
Myricaceae NEBC: 00565119 Myrica gale Linnaeus USA: Massachusetts Georgetown: Rock Pond C. N. S. Horner
Nyctaginaceae GH: 01642416 Abronia fragrans Nuttall ex Hooker USA: Colorado Laka Minnequa etc C. N. S. Horner 1898
Oleaceae NEBC: 00593765 Fraxinus americana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1878
NEBC: 00578881 Ligustrum vulgare Linnaeus USA: Massachusetts Malden: Malden C. N. S. Horner
Onagraceae NEBC: 01039458 Chamaenerion angustifolium (Linnaeus) Scopoli USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01073697 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01074791 Epilobium ciliatum Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01075971 Epilobium coloratum Biehler USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01057877 Epilobium strictum Muhlenberg USA: Massachusetts Haverhill: Haverhill C. N. S. Horner
GH: 01777894 Gaura coccinea glabra (Lehmann) Munz USA: Colorado Pueblo: So Pueblo C. N. S. Horner
GH: 01645574 Oenothera coronopifolia A. Gray & Torrey USA: Colorado Pass Creek on way to Gardiner C. N. S. Horner 1898
GH: 01645575 Oenothera coronopifolia A. Gray & Torrey USA: Colorado Beyond Placer C. N. S. Horner 1898
NEBC: 00568500 Oenothera perennis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Ophioglossaceae NEBC: 00654652 Botrychium dissectum Sprengel USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00654653 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00654655 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00654656 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00654657 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00654658 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00654660 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00654661 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1897
NEBC: 00654674 Botrychium dissectum Sprengel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00654675 Botrychium dissectum Sprengel USA: Massachusetts C. N. S. Horner 1897
GH: 00654676 Botrychium dissectum Sprengel USA: Massachusetts C. N. S. Horner 1897
GH: 00654677 Botrychium dissectum Sprengel USA: Massachusetts C. N. S. Horner 1897
NEBC: 00639270 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00639272 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1874
GH: 00639271 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1875
NEBC: 00772009 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00639273 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00639274 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1875
GH: 00639275 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1874
NEBC: 00639276 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00690318 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00690319 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00690320 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00690321 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Groveland: Groveland C. N. S. Horner 1890
NEBC: 00690323 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1896
Orchidaceae NEBC: 00463590 Arethusa bulbosa Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00463784 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00462063 Corallorhiza maculata (Rafinesque) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1873
NEBC: 00462068 Corallorhiza maculata (Rafinesque) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1884
NEBC: 00712534 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00728363 Cypripedium reginae Walter USA: Vermont South Danville C. N. S. Horner 1877
NEBC: 01021152 Goodyera pubescens (Willdenow) R. Brown USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01021674 Goodyera tesselata Loddiges USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 01021673 Goodyera tesselata Loddiges USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 01062197 Platanthera clavellata (Michaux) Luer USA: Vermont C. N. S. Horner
NEBC: 01062770 Platanthera flava herbiola (R. Brown) Luer USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01062773 Platanthera flava herbiola (R. Brown) Luer USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1890
NEBC: 01062771 Platanthera flava herbiola (R. Brown) Luer USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01062772 Platanthera flava herbiola (R. Brown) Luer USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00462430 Platanthera grandiflora (Bigelow) Lindley USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1875
NEBC: 00462328 Platanthera grandiflora (Bigelow) Lindley USA: New Hampshire Bristol: Bristol C. N. S. Horner
AMES: 02045516 Platanthera huronensis (Nuttall) Lindley USA: Colorado Trinchara Cr. Road from Ft. Garland C. N. S. Horner 1899
AMES: 02045525 Platanthera huronensis (Nuttall) Lindley USA: Colorado Near Fort Garland C. N. S. Horner 1899
NEBC: 00462672 Platanthera lacera (Michaux) G. Don USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1895
NEBC: 00485068 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
NEBC: 00485069 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
NEBC: 00569766 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00569764 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01063137 Spiranthes lacera (Rafinesque) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01063637 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
AMES: 02032364 Spiranthes lucida (H. H. Eaton) Ames USA: Colorado Trinchara Cr. C. N. S. Horner 1899
Orobanchaceae NEBC: 00762950 Agalinis maritima (Rafinesque) Rafinesque USA: Massachusetts Newburyport: Newburyport C. N. S. Horner
NEBC: 00762951 Agalinis maritima (Rafinesque) Rafinesque USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00645446 Agalinis paupercula (A. Gray) Britton USA: Massachusetts Newburyport: Newburyport C. N. S. Horner
NEBC: 00664003 Agalinis tenuifolia (Vahl) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00664154 Aureolaria flava (Linnaeus) Farwell USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 00561435 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00561436 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00731043 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts South Georgetown C. N. S. Horner
GH: 01878053 Castilleja miniata Douglas ex Hooker USA: Colorado [no additional data] C. N. S. Horner 1898
GH: 01878855 Castilleja rhexifolia Rydberg USA: Colorado Placer C. N. S. Horner 1898
NEBC: 00630768 Epifagus virginiana (Linnaeus) W. P. C. Barton USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00731288 Orobanche uniflora Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 02081253 Orthocarpus luteus Nuttall USA: Colorado Trinchara Creek C. N. S. Horner 1899
NEBC: 00502071 Pedicularis canadensis Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
GH: 02080949 Pedicularis groenlandica surrecta (Bentham) A. Gray USA: Colorado Wagon Creek, Sangre de Cristo region C. N. S. Horner 1898
GH: 02079920 Pedicularis procera A. Gray USA: Colorado Placer C. N. S. Horner 1898
Osmundaceae NEBC: 00739614 Osmunda claytoniana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00720571 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00677559 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00677563 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Oxalidaceae NEBC: 01013424 Oxalis stricta Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Papaveraceae NEBC: 00697962 Adlumia fungosa (Aiton) Greene ex Britton, Stearn & Poggenburg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01738337 Corydalis aurea Willdenow USA: Colorado South Cheyenne Canon C. N. S. Horner 1898
NEBC: 00722054 Corydalis sempervirens (Linnaeus) Persoon USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00583952 Sanguinaria canadensis Linnaeus USA: Vermont Byfield C. N. S. Horner
Parnassiaceae GH: 01787184 Parnassia palustris parviflora (de Candolle) B. Boivin USA: Colorado Trinchara cr. near Ft Garland C. N. S. Horner 1899
GH: 01787186 Parnassia palustris parviflora (de Candolle) B. Boivin USA: Colorado Trinchara Creek C. N. S. Horner 1899
Penthoraceae NEBC: 01028492 Penthorum sedoides Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Phrymaceae NEBC: 00664718 Phryma leptostachya Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00664717 Phryma leptostachya Linnaeus USA: Massachusetts Newbury: Newbury C. N. S. Horner
Phytolaccaceae NEBC: 00732637 Phytolacca americana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Plantaginaceae NEBC: 00502262 Gratiola aurea Muhlenberg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00502336 Gratiola aurea Muhlenberg USA: Massachusetts Saunton Seadden's Pond C. N. S. Horner
NEBC: 00650135 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00650137 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Massachusetts Groveland: Groveland C. N. S. Horner
GH: 01801107 Penstemon unilateralis Rydberg USA: Colorado Red Creek (Rest Cottage) C. N. S. Horner
NEBC: 00582112 Plantago lanceolata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00655528 Veronica officinalis Linnaeus USA: Massachusetts Newburyport: Newburyport C. N. S. Horner 1 1886
NEBC: 00561839 Veronica peregrina xalapensis (Kunth) Pennell USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00656938 Veronica persica Poiret USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00656937 Veronica persica Poiret USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
NEBC: 00775072 Veronica scutellata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1870
NEBC: 00775071 Veronica scutellata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00579208 Veronica serpyllifolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885
GH: 01811993 Veronica spicata Linnaeus USA: Massachusetts [data not captured] C. N. S. Horner
Plumbaginaceae NEBC: 00729684 Limonium carolinianum (Walter) Britton USA: Massachusetts Rowley: Rowley C. N. S. Horner
Poaceae NEBC: 01178495 Agrostis perennans (Walter) Tuckerman USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01175749 Agrostis scabra Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00835118 Agrostis stolonifera Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00689777 Ammophila breviligulata Fernald USA: Massachusetts Plum Island C. N. S. Horner
NEBC: 00622700 Anthoxanthum odoratum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00609124 Briza media Linnaeus USA: Massachusetts West Boxford C. N. S. Horner 1880
NEBC: 00685834 Bromus marginatus Nees ex Steudel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00878192 Cinna arundinacea Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner 1882
NEBC: 01174927 Danthonia compressa Austin USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00860381 Deschampsia flexuosa (Linnaeus) Trinius USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00860389 Deschampsia flexuosa (Linnaeus) Trinius USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 00673912 Dichanthelium acuminatum spretum (Schultes) Freckmann & Lelong USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00705122 Dichanthelium dichotomum (Linnaeus) Gould USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00609526 Digitaria sanguinalis (Linnaeus) Scopoli USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00853728 Distichlis spicata (Linnaeus) Greene USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00609665 Echinochloa crus-galli (Linnaeus) P. Beauvois USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 8
NEBC: 00868119 Elymus canadensis Linnaeus USA: Maine C. N. S. Horner 1884
NEBC: 00865777 Elymus hystrix Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00865779 Elymus hystrix Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885-9
NEBC: 00613446 Eragrostis cilianensis (Allioni) Vignolo ex Janchen USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00879127 Eragrostis pectinacea (Michaux) Steudel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00853841 Eragrostis spectabilis (Pursh) Steudel USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1875
NEBC: 01149081 Glyceria grandis S. Watson USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01149362 Glyceria obtusa (Muhlenberg) Trinius USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01148207 Glyceria striata (Lamarck) Hitchcock USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00613774 Holcus lanatus Linnaeus USA: New Hampshire Georgetown C. N. S. Horner
NEBC: 00613290 Hordeum jubatum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00817694 Leersia virginica Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00817695 Leersia virginica Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00853920 Muhlenbergia frondosa (Poiret) Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00855761 Muhlenbergia mexicana (Linnaeus) Trinius USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00879351 Muhlenbergia uniflora (Muhlenberg) Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01151813 Panicum capillare occidentale Rydberg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00864101 Panicum rigidulum Bosc ex Nees USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00853492 Panicum virgatum spissum Linder USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00855586 Paspalum setaceum Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00611832 Phalaris arundinacea Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00611977 Phragmites australis (Cavanilles) Trinius ex Steudel USA: Massachusetts Topsfield: Topsfield C. N. S. Horner
NEBC: 00865258 Piptatherum racemosum (Smith) Eaton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00595287 Poa annua Linnaeus USA: Massachusetts C. N. S. Horner
NEBC: 00606283 Poa compressa Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00606282 Poa compressa Linnaeus USA: New England: N.E. C. N. S. Horner
NEBC: 01150412 Poa palustris Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00734450 Schizachyrium scoparium (Michaux) Nash USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00598249 Setaria pumila (Poiret) Roemer & Schultes USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00680731 Sorghastrum nutans (Linnaeus) Nash USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00879300 Spartina alterniflora Loiseleur-Deslongchamps USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01174532 Spartina pectinata Link USA: Massachusetts Merrimac: Merrimac C. N. S. Horner 1884
NEBC: 01174536 Spartina pectinata Link USA: Massachusetts Rowley: Pringles Island C. N. S. Horner 1883
NEBC: 00863843 Zizania aquatica Linnaeus USA: Massachusetts Haverhill: Haverhill C. N. S. Horner 1883
Polemoniaceae GH: 00985374 Ipomopsis aggregata candida (Rydberg) V. E. Grant & A. D. Grant USA: Colorado Lake Minnequa Pueblo C. N. S. Horner 1898
GH: 00985394 Ipomopsis aggregata collina (Greene) Wilken & Allard USA: Colorado Near Lake Minnequa C. N. S. Horner 1900
GH: 01694357 Polemonium foliosissimum A. Gray USA: Colorado Pueblo: [no additional data] C. N. S. Horner 1898
Polygalaceae NEBC: 00572382 Polygala paucifolia Willdenow USA: Massachusetts Haverhill: Haverhill C. N. S. Horner
NEBC: 00752076 Polygala polygama Walter USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00720316 Polygala polygama Walter USA: Massachusetts Nantucket: Nantucket C. N. S. Horner
NEBC: 00720743 Polygala sanguinea Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00505991 Polygala verticillata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Polygonaceae NEBC: 00648980 Polygonella articulata (Linnaeus) Meisner USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00749370 Polygonum orientale Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1882
NEBC: 00736158 Polygonum prolificum (Small) B. L. Robinson USA: Massachusetts Ipswich: Ipswich C. N. S. Horner
Polypodiaceae NEBC: 00658158 Polypodium virginianum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Pontederiaceae NEBC: 00864175 Pontederia cordata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Primulaceae NEBC: 00502691 Lysimachia hybrida Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00502692 Lysimachia hybrida Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1885
NEBC: 00563569 Lysimachia nummularia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00610401 Lysimachia punctata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00572565 Lysimachia thyrsiflora Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00572566 Lysimachia thyrsiflora Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1880
Pteridaceae NEBC: 00219217 Adiantum pedatum Linnaeus USA: Massachusetts Georgetown: C. N. S. Horner
NEBC: 00219216 Adiantum pedatum Linnaeus USA: Massachusetts Boxford: West Boxford C. N. S. Horner
NEBC: 00219218 Adiantum pedatum Linnaeus USA: Massachusetts Georgetown: C. N. S. Horner
Ranunculaceae GH: 01720219 Aconitum columbianum Nuttall USA: Colorado Placer road C. N. S. Horner 1898
NEBC: 01034381 Actaea rubra (Aiton) Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01034382 Actaea rubra (Aiton) Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01706437 Anemone canadensis Linnaeus USA: Colorado Wagon creek camp C. N. S. Horner 1898
NEBC: 01034640 Anemone cylindrica A. Gray USA: Massachusetts West Boxford C. N. S. Horner
GH: 01707074 Anemone multifida Poiret USA: Colorado near Wagon Cr. C. N. S. Horner 1898
GH: 01707288 Anemone multifida Poiret USA: Colorado [no additional data] C. N. S. Horner 1898
GH: 01707289 Anemone multifida Poiret USA: Colorado Wagon Creek Colo. (eastern) C. N. S. Horner 1898
GH: 01708063 Anemone patens multifida Pritzel USA: Colorado Green Mt Falls C. N. S. Horner
GH: 01708065 Anemone patens multifida Pritzel USA: Colorado Garden of the Gods; Crawford [?] Farm C. N. S. Horner 1898
NEBC: 00572008 Anemone quinquefolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00753780 Anemone virginiana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 01013092 Caltha palustris Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01710874 Clematis columbiana (Nuttall) Torrey & A. Gray USA: Colorado Greenwood C. N. S. Horner
GH: 01657181 Clematis scottii Porter & J. M. Coulter USA: Colorado Near Parkdale C. N. S. Horner 1898
GH: 01657184 Clematis scottii Porter & J. M. Coulter USA: Colorado Near Parkdale C. N. S. Horner 1898
GH: 01657187 Clematis scottii Porter & J. M. Coulter USA: Colorado Sangre de Cristo valley C. N. S. Horner 1898
NEBC: 00575721 Clematis virginiana Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00553560 Coptis trifolia (Linnaeus) Salisbury USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00553561 Coptis trifolia (Linnaeus) Salisbury USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01661007 Halerpestes cymbalaria (Pursh) Green USA: Colorado Arkansas River banks at Taylor C. N. S. Horner 1899
NEBC: 00595933 Hepatica acutiloba de Candolle USA: Vermont Rutland: Rutland C. N. S. Horner
NEBC: 01013276 Hepatica americana (de Candolle) Ker Gawler USA: Massachusetts Newbury: Newbury C. N. S. Horner
NEBC: 00831068 Ranunculus abortivus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01662769 Ranunculus aquatilis diffusus Withering USA: Colorado Crowfoot T. C. N. S. Horner 1898
NEBC: 01015832 Ranunculus flabellaris Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00692466 Ranunculus flammula Linnaeus USA: Massachusetts Groveland: Groveland C. N. S. Horner 1883
NEBC: 00719199 Ranunculus recurvatus Poiret USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00552760 Thalictrum dioicum Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00719868 Thalictrum pubescens Pursh USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00719869 Thalictrum pubescens Pursh USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Rhamnaceae NEBC: 00643653 Ceanothus americanus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01790418 Ceanothus sp. USA: Colorado La Veta: [no additional data] C. N. S. Horner
Rosaceae GH: 01726387 Amelanchier alnifolia (Nuttall) Nuttall ex M. Roemer USA: Colorado Silvercliff C. N. S. Horner 1898
NEBC: 00674173 Aronia melanocarpa (Michaux) Elliott USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01587359 Cercocarpus montanus Rafinesque USA: Colorado Way to Wagon Creek C. N. S. Horner 1898
NEBC: 00688116 Dalibarda repens Linnaeus USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
GH: 01607985 Dasiphora fruticosa (Linnaeus) Rydberg USA: Colorado Swallows. C. N. S. Horner
GH: 01608246 Drymocallis arguta (Pursh) Rydberg USA: Colorado Salt Creek C. N. S. Horner
GH: 01608417 Drymocallis fissa (Nuttall) Rydberg USA: Colorado Arkansas Colo. C. N. S. Horner
NEBC: 00724394 Geum canadense Jacquin USA: Massachusetts South Georgetown C. N. S. Horner
NEBC: 00724395 Geum canadense Jacquin USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01609924 Geum macrophyllum perincisum (Rydberg) Raup USA: Colorado Parkdale C. N. S. Horner 1898
NEBC: 00565628 Geum rivale Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00565629 Geum rivale Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00524304 Potentilla argentea Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00710552 Potentilla arguta Lehmann USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00710553 Potentilla arguta Lehmann USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00756189 Potentilla canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00710871 Potentilla egedii groenlandica (Trattinnick) Polunin USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 00756286 Potentilla fruticosa (Linnaeus) Rydberg USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00756287 Potentilla fruticosa (Linnaeus) Rydberg USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00561185 Potentilla norvegica Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00653145 Potentilla simplex Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00441276 Potentilla tridentata Aiton USA: Massachusetts Gloucester: Gloucester C. N. S. Horner
NEBC: 00653782 Rosa virginiana Miller USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00651557 Rubus odoratus Linnaeus USA: New Hampshire Bristol: Bristol C. N. S. Horner 1882
NEBC: 00641403 Rubus pubescens Rafinesque USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 00524997 Sanguisorba canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00524998 Sanguisorba canadensis Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1884-9-20
NEBC: 00524999 Sanguisorba canadensis Linnaeus USA: Massachusetts Rowley: Rowley C. N. S. Horner
NEBC: 00659452 Spiraea latifolia (Aiton) Borkhausen USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00710151 Spiraea tomentosa Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Rubiaceae GH: 02359242 Galium boreale Linnaeus USA: Colorado Vineland C. N. S. Horner
NEBC: 00558417 Galium circaezans hypomalacum Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00558418 Galium circaezans hypomalacum Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 02138164 Galium lanceolatum (Torrey) Torrey USA: Colorado Taylor C. N. S. Horner
NEBC: 00755039 Galium obtusum Bigelow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 02140756 Galium sp. USA: Colorado Vitor C. N. S. Horner 1899
NEBC: 00693017 Galium tinctorium Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00503392 Galium triflorum Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00598780 Galium verum Linnaeus USA: Massachusetts Taunton: Taunton C. N. S. Horner
NEBC: 00485226 Houstonia caerulea Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00670465 Houstonia longifolia Gaertner USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00765832 Sherardia arvensis Linnaeus USA: Massachusetts Newburyport: Newburyport C. N. S. Horner
Salicaceae NEBC: 00659037 Populus tremuloides Michaux USA: Massachusetts West Boxford C. N. S. Horner
Santalaceae NEBC: 00575362 Comandra umbellata (Linnaeus) Nuttall USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Sarraceniaceae NEBC: 00231168 Sarracenia purpurea Linnaeus USA: Massachusetts Boxford: West Boxford C. N. S. Horner 1890
NEBC: 00231169 Sarracenia purpurea Linnaeus USA: Massachusetts Georgetown: C. N. S. Horner
Saururaceae NEBC: 00712254 Saururus cernuus Linnaeus USA: Connecticut Litchfield: Litchfield C. N. S. Horner
Saxifragaceae NEBC: 01008170 Chrysosplenium americanum Schweinitz ex Hooker USA: Massachusetts Georgetown: Georgetown C. N. S. Horner 1886
NEBC: 01008169 Chrysosplenium americanum Schweinitz ex Hooker USA: Massachusetts Andover: Andover C. N. S. Horner
NEBC: 00665068 Ribes americanum Miller USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00730481 Ribes americanum Miller USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00563098 Saxifraga pensylvanica Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00575034 Saxifraga virginiensis Michaux USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Scrophulariaceae GH: 01841759 Erythranthe guttata (de Candolle) G. L. Nesom USA: Colorado Indian Creek C. N. S. Horner 1898
GH: 01841756 Erythranthe guttata (de Candolle) G. L. Nesom USA: Colorado Trinchara cr C. N. S. Horner 1899
NEBC: 00668975 Mimulus ringens Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00505230 Verbascum thapsus Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Selaginellaceae NEBC: 00632568 Selaginella apoda (Linnaeus) C. Morren USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00738006 Selaginella rupestris (Linnaeus) Spring USA: Massachusetts West Boxford C. N. S. Horner
GH: 02074076 Selaginella underwoodii Hieronymus USA: Colorado N. Cheyenne Canon C. N. S. Horner 1898
Smilacaceae NEBC: 00503771 Smilax rotundifolia Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Solanaceae NEBC: 00577366 Datura stramonium Linnaeus USA: Massachusetts Clifton C. N. S. Horner
NEBC: 00630019 Physalis heterophylla Nees USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01542058 Quincula lobata (Torrey) Rafinesque USA: Colorado [no additional data] C. N. S. Horner 1898-8
NEBC: 00564350 Solanum dulcamara Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
GH: 01542811 Solanum elaegnifolium Cavanilles USA: Colorado Colorado Plains C. N. S. Horner 1895
NEBC: 00630163 Solanum emulans Rafinesque USA: Massachusetts Rowley: Rowley, Pingree Island C. N. S. Horner
GH: 01543045 Solanum lycopersicum Linnaeus USA: New York New York C. N. S. Horner
NEBC: 00592201 Solanum rostratum Dunal USA: Massachusetts Marblehead: Marblehead C. N. S. Horner
GH: 01543332 Solanum rostratum Dunal USA: Colorado Colorado Springs: Tejone St C. N. S. Horner 1898
GH: 01543544 Solanum triflorum Nuttall USA: Colorado Parkdale C. N. S. Horner 1898
Taxaceae NEBC: 00668378 Taxus canadensis Marshall USA: New Hampshire Plaistow: Plaistow C. N. S. Horner
Thelypteridaceae NEBC: 00631869 Phegopteris hexagonoptera (Michaux) Fée USA: Massachusetts Boxford: Boxford C. N. S. Horner
NEBC: 00631675 Phegopteris hexagonoptera (Michaux) Fée USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00631871 Phegopteris hexagonoptera (Michaux) Fée USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00652112 Thelypteris noveboracensis (Linnaeus) Nieuwland USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00708402 Thelypteris palustris pubescens (G. Lawson) Fernald USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Tiliaceae NEBC: 00679375 Tilia americana Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
Trilliaceae NEBC: 00573161 Medeola virginiana Linnaeus USA: Massachusetts West Boxford C. N. S. Horner
Urticaceae NEBC: 00648120 Laportea canadensis (Linnaeus) Weddell USA: Massachusetts Newbury: Newbury C. N. S. Horner
Verbenaceae GH: 01800381 Glandularia bipinnatifida (Nuttall) Nuttall USA: Colorado Near Fort Garland C. N. S. Horner 1899
GH: 01800379 Glandularia bipinnatifida (Nuttall) Nuttall USA: Colorado Near Fort Garland C. N. S. Horner
GH: 01953524 Phyla cuneifolia (Torrey) Greene USA: Colorado near Silver Cliff C. N. S. Horner 1899
Violaceae NEBC: 00560074 Viola blanda Willdenow USA: Massachusetts Groveland: Groveland C. N. S. Horner
NEBC: 00560885 Viola labradorica Schrank USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00560887 Viola labradorica Schrank USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00560884 Viola labradorica Schrank USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00569388 Viola lanceolata Linnaeus USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00715963 Viola pedata Linnaeus USA: Massachusetts Boxford: Boxford C. N. S. Horner 1886
NEBC: 00713771 Viola pubescens Aiton USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00730136 Viola sagittata ovata (Nuttall) Torrey & A. Gray USA: New Hampshire Bridgewater: Bridgewater C. N. S. Horner 1882
NEBC: 00640188 Viola sagittata ovata (Nuttall) Torrey & A. Gray USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00659092 Viola sororia Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
NEBC: 00659094 Viola sororia Willdenow USA: Massachusetts Georgetown: Georgetown C. N. S. Horner
Woodsiaceae NEBC: 00676279 Woodsia ilvensis (Linnaeus) R. Brown USA: Massachusetts West Boxford C. N. S. Horner
NEBC: 00676670 Woodsia obtusa (Sprengel) Torrey USA: Massachusetts Newbury: Newbury C. N. S. Horner
Xyridaceae NEBC: 00875479 Xyris difformis Chapman USA: Massachusetts Georgetown: Georgetown C. N. S. Horner