Harvard University Herbaria & Libraries

Aceraceae
NEBC: 00752902 Acer saccharinum Linnaeus USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 00663320 Acer saccharum Marshall USA: Massachusetts Sunderland: Sunderland.Mt. Toby C. H. Knowlton 1909-5-23
Alismataceae
NEBC: 01080335 Sagittaria cuneata E. Sheldon USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 01032551 Sagittaria latifolia Willdenow USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-13
NEBC: 01032552 Sagittaria latifolia Willdenow USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
Anacardiaceae
NEBC: 00772276 Toxicodendron rydbergii (Small ex Rydberg) Greene USA: Maine Marshfield: Marshfield C. H. Knowlton 1909-7-13
NEBC: 00772350 Toxicodendron vernix (Linnaeus) Kuntze USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
Apiaceae
NEBC: 00523688 Aethusa cynapium Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-10-10
NEBC: 00483750 Cicuta bulbifera Linnaeus USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1909-9-12
NEBC: 00483751 Cicuta bulbifera Linnaeus USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1909-9-12
NEBC: 01051240 Heracleum maximum W. Bartram USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-13
NEBC: 01051372 Hydrocotyle americana Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00523997 Zizia aurea (Linnaeus) W. D. J. Koch USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
Araceae
NEBC: 01080844 Peltandra virginica (Linnaeus) Rafinesque ex Schott USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
Aristolochiaceae
NEBC: 00642476 Asarum canadense Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-22
Aspidiaceae
NEBC: 00636923 Polystichum acrostichoides (Michaux) Schott USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-23
Aspleniaceae
NEBC: 00701120 Asplenium trichomanes Linnaeus USA: Maine Strong: Strong C. H. Knowlton 1909-8-20
Asteraceae
NEBC: 00566735 Achillea millefolium Linnaeus USA: Maine Northfield: Northfield C. H. Knowlton 1909-7-14
NEBC: 01023092 Antennaria plantaginifolia (Linnaeus) Hooker USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-5-30
NEBC: 01038059 Bidens vulgata Greene USA: Massachusetts Essex: Essex C. H. Knowlton 1909
NEBC: 00587952 Cichorium intybus Linnaeus USA: Massachusetts Essex: Essex C. H. Knowlton 1909
NEBC: 01017647 Cirsium discolor (Muhlenberg ex Willdenow) Sprengel USA: Massachusetts Essex: Essex C. H. Knowlton 1909
NEBC: 01017650 Cirsium discolor (Muhlenberg ex Willdenow) Sprengel USA: Massachusetts Ipswich: Ipswich C. H. Knowlton 1909-10-3
NEBC: 00725544 Cirsium horridulum Michaux USA: Massachusetts Sandwich: Sandwich C. H. Knowlton 1909-6-15
NEBC: 01017731 Cirsium muticum Michaux USA: Maine Avon: Avon C. H. Knowlton 1909-8-20
NEBC: 01017733 Cirsium muticum Michaux USA: Maine Day Mountain C. H. Knowlton 1909-8-20
NEBC: 00577048 Cirsium palustre (Linnaeus) Scopoli USA: Massachusetts Boston: S. [South] Boston C. H. Knowlton 1909
NEBC: 00535304 Coreopsis lanceolata Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-7-4
NEBC: 00535205 Crepis capillaris (Linnaeus) Wallroth USA: Massachusetts Falmouth: Falmouth C. H. Knowlton 1909-6-17
NEBC: 01047492 Cyanus segetum Hill USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 01019365 Doellingeria umbellata (Miller) Nees USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 01034224 Eupatorium pubescens Muhlenberg ex Willdenow USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
NEBC: 00531973 Hieracium aurantiacum Linnaeus USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1909-7-10
NEBC: 00587614 Hieracium caespitosum Dumortier USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00833288 Hieracium kalmii Linnaeus USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1909-9-6
NEBC: 01067727 Lactuca canadensis Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-9-5
NEBC: 00718604 Scorzoneroides autumnalis borealis (Ball) Greuter USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
NEBC: 00553221 Solidago bicolor Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-10-10
NEBC: 01077444 Solidago caesia Linnaeus USA: Massachusetts Hanover: Hanover C. H. Knowlton 1909-9-12
NEBC: 01077445 Solidago caesia Linnaeus USA: Massachusetts Hanover: Hanover C. H. Knowlton 1909-9-12
NEBC: 01063381 Solidago nemoralis Aiton USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
NEBC: 01064560 Solidago sempervirens Linnaeus USA: Massachusetts Ipswich: Ipswich C. H. Knowlton 1909
NEBC: 01063923 Solidago uliginosa Nuttall USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1909-9-12
NEBC: 01014437 Symphyotrichum racemosum (Elliott) G. L. Nesom USA: Massachusetts Essex: Essex C. H. Knowlton 1909-10-3
NEBC: 00691793 Xanthium strumarium canadense (Miller) Torr. & A. Gray USA: Massachusetts Wayland: Wayland, Heard's Pond C. H. Knowlton 1909-9-6
Athyriaceae
NEBC: 00577951 Cystopteris bulbifera (Linnaeus) Bernhardi USA: Maine Strong: Strong C. H. Knowlton 1909-8-20
NEBC: 00662342 Gymnocarpium dryopteris (Linnaeus) Newman USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
Betulaceae
NEBC: 00727479 Corylus cornuta Marshall USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
Boraginaceae
NEBC: 00577270 Myosotis scorpioides Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-9-12
NEBC: 00716861 Myosotis verna Nuttall USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
Brassicaceae
NEBC: 01007715 Boechera canadensis (Linnaeus) Al-Shehbaz USA: Massachusetts Mount Holyoke C. H. Knowlton 1909-7-29
NEBC: 00757013 Boechera missouriensis (Greene) Al-Shehbaz USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
NEBC: 00592746 Camelina microcarpa Andrzejowski ex de Candolle USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-23
NEBC: 00757678 Cardamine parviflora arenicola (Britton) O. E. Schulz USA: Massachusetts Granby: Granby C. H. Knowlton 1909-5-22
NEBC: 00660998 Cardamine parviflora arenicola (Britton) O. E. Schulz USA: Massachusetts Hadley: Hadley C. H. Knowlton 1909-5-22
NEBC: 00593877 Rorippa sylvestris (Linnaeus) Besser USA: Massachusetts East Weymouth C. H. Knowlton 1909-7-27
NEBC: 00602356 Thlaspi arvense Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-23
Caprifoliaceae
NEBC: 00721224 Sambucus racemosa Linnaeus USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00611251 Viburnum nudum cassinoides (Linnaeus) Torrey & A. Gray USA: Massachusetts Chelmsford: Chelmsford C. H. Knowlton 1909-6-22
Caryophyllaceae
NEBC: 00698505 Cerastium arvense Linnaeus USA: Massachusetts Sunderland: Sunderland C. H. Knowlton 1909-5-23
NEBC: 00698505 Cerastium strictum Linnaeus USA: Massachusetts Sunderland: Sunderland C. H. Knowlton 1909-5-23
NEBC: 00612683 Sagina procumbens Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00693540 Stellaria alsine Grimm USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00732967 Stellaria longifolia Muhlenberg ex Willdenow USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
Celastraceae
NEBC: 00295104 Celastrus scandens Linnaeus USA: Maine Strong: Day Mt. C. H. Knowlton 1909-8-20
Chenopodiaceae
NEBC: 00650728 Atriplex littoralis Linnaeus USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
GH: 00598834 Bassia hirsuta (L.) Archers USA: Massachusetts Boston: South Boston C. H. Knowlton 206 1909
NEBC: 00670789 Chenopodium simplex (Torrey) Rafinesque USA: Maine Strong: Strong C. H. Knowlton 1909-8-20
Cistaceae
NEBC: 00699404 Crocanthemum bicknellii (Fernald) Janchen USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-30
NEBC: 00750431 Hudsonia tomentosa Nuttall USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 00569166 Lechea intermedia Leggett ex Britton USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-30
NEBC: 00757211 Lechea maritima Leggett ex Britton USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1909-9-6
Convolvulaceae
NEBC: 00684207 Cuscuta gronovii Willdenow ex Roemer & Schultes USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
Cornaceae
NEBC: 00767299 Cornus florida Linnaeus USA: Massachusetts Granby: Granby C. H. Knowlton 1909-5-22
ECON: 00773750 Cornus intermedia (Farr) Calder & Roy L. Taylor USA: Massachusetts Norwell: Norwell C. H. Knowlton 1909-6-21
NEBC: 00573491 Cornus racemosa Lamarck USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
NEBC: 00672578 Cornus rugosa Lamarck USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00633930 Cornus stolonifera Michaux USA: Massachusetts Sunderland: Sunderland C. H. Knowlton 1909-5-23
Crassulaceae
NEBC: 00586963 Sedum telephium Linnaeus USA: Maine Temple: Temple C. H. Knowlton 1909-8-13
Cyperaceae
NEBC: 00222590 Carex communis L. H. Bailey USA: Massachusetts Amherst: C. H. Knowlton 1909-5-22
NEBC: 00229488 Carex deweyana deweyana USA: Maine Strong: Day Mountain C. H. Knowlton 1909-8-20
NEBC: 00869278 Carex lupulina Muhlenberg ex Willdenow USA: Massachusetts Wayland: Wayland, Heard Pond C. H. Knowlton 1909-9-6
NEBC: 00807005 Carex nigra (Linnaeus) Reichard USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00807939 Carex plantaginea Lamarck USA: Maine Day Mountain C. H. Knowlton 1909-8-20
GH: 01161546 Carex platyphylla J. Carey USA: Massachusetts Sunderland: Sunderland C. H. Knowlton 1909-5-23
NEBC: 01161547 Carex platyphylla J. Carey USA: Massachusetts Sunderland: Sunderland C. H. Knowlton 1909-5-23
NEBC: 01060533 Carex trisperma Dewey USA: Massachusetts Chelmsford: Chelmsford C. H. Knowlton 1909-6-21
NEBC: 01043888 Cyperus esculentus Linnaeus USA: Massachusetts Framingham: Framingham C. H. Knowlton 1909-9-6
NEBC: 01018071 Eleocharis palustris (Linnaeus) Roemer & Schultes USA: Maine Mount Desert Island C. H. Knowlton 1909-7-10
NEBC: 01048818 Eleocharis tenuis (Willdenow) Schultes USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00766833 Eriophorum vaginatum Linnaeus USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
NEBC: 00638819 Scirpus purshianus Fernald USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-30
Droseraceae
NEBC: 00741580 Drosera filiformis Rafinesque USA: Massachusetts Barnstable Town C. H. Knowlton 1909-7-24
NEBC: 00741990 Drosera rotundifolia Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1909-7-13
Ericaceae
NEBC: 01013846 Gaylussacia bigeloviana (Fernald) Sorrie & Weakley USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
NEBC: 00519564 Vaccinium corymbosum Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-5-30
Fabaceae
NEBC: 00747761 Crotalaria sagittalis Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-29
NEBC: 00739802 Lespedeza capitata Michaux USA: Massachusetts Framingham: Framingham C. H. Knowlton 1909-9-6
NEBC: 00639641 Lespedeza violacea (Linnaeus) Persoon USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1909-9-6
NEBC: 00463134 Vicia cracca Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1909-7-16
NEBC: 00591970 Vicia tetrasperma (Linnaeus) Schreber USA: Maine Castine: Castine C. H. Knowlton 1909
Fagaceae
NEBC: 00746224 Fagus grandifolia Ehrhart USA: Maine Northfield: Northfield C. H. Knowlton 1909-7-14
NEBC: 00746225 Fagus grandifolia Ehrhart USA: Maine Northfield: Northfield C. H. Knowlton 1909-7-14
Gentianaceae
NEBC: 00574859 Menyanthes trifoliata minor Rafinesque USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-5-30
Geraniaceae
NEBC: 01070546 Geranium robertianum Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-29
Haloragaceae
NEBC: 01067111 Myriophyllum humile (Rafinesque) Morong USA: Massachusetts Framingham: Framingham C. H. Knowlton 1909-9-6
Hypericaceae
NEBC: 00504561 Hypericum gentianoides (Linnaeus) Britton, Sterns & Poggenburg USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-10-10
NEBC: 02230116 Hypericum gentianoides (Linnaeus) Britton, Sterns & Poggenburg USA: Massachusetts Hingham: [no additional data] C. H. Knowlton 1909-10-10
NEBC: 00765212 Hypericum perforatum Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00773006 Hypericum punctatum Lamarck USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-7-29
Iridaceae
NEBC: 01044718 Sisyrinchium atlanticum E. P. Bicknell USA: Massachusetts Sandwich: Sandwich C. H. Knowlton 1909-6-15
NEBC: 00894138 Sisyrinchium montanum crebrum Fernald USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-5-30
Juncaceae
NEBC: 01025711 Juncus balticus littoralis (Engelmann) Snogerup USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 00638927 Luzula acuminata Rafinesque USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 01182513 Luzula multiflora (Ehrhart) Lejeune USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
Lamiaceae
NEBC: 00696885 Lycopus uniflorus Michaux USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 01018353 Mentha gentilis Linnaeus USA: Massachusetts Ashburnham: Ashburnham C. H. Knowlton 1909-8-8
NEBC: 00642228 Pycnanthemum incanum (Linnaeus) Michaux USA: Massachusetts Granby: Granby C. H. Knowlton 1909-7-29
NEBC: 00648505 Pycnanthemum muticum (Michaux) Persoon USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-29
NEBC: 00707581 Stachys hyssopifolia Michaux USA: Massachusetts Barnstable Town C. H. Knowlton 1909-7-24
Lentibulariaceae
NEBC: 00568255 Utricularia cornuta Michaux USA: Massachusetts Hyannis C. H. Knowlton 1909-7-23
NEBC: 00568265 Utricularia cornuta Michaux USA: Massachusetts Ashburnham: Ashburnham C. H. Knowlton 1909-8-8
NEBC: 00664524 Utricularia vulgaris macrorhiza (L. LeConte) R. T. Clausen USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
Liliaceae
NEBC: 00880718 Lilium philadelphicum Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 01182878 Maianthemum stellatum (Linnaeus) Link USA: Massachusetts Essex: Essex C. H. Knowlton 1909
NEBC: 01044123 Trillium erectum Linnaeus USA: Maine Day Mountain C. H. Knowlton 1909-8-20
NEBC: 00869291 Trillium erectum Linnaeus USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
Linaceae
NEBC: 00741190 Linum intercursum E. P. Bicknell USA: Massachusetts Barnstable Town C. H. Knowlton 1909-7-24
Lycopodiaceae
NEBC: 00738331 Dendrolycopodium obscurum (Linnaeus) A. Haines USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
NEBC: 00139522 Diphasiastrum tristachyum (Pursh) Holub USA: Massachusetts Norwell: C. H. Knowlton 1909-6-21
NEBC: 00742304 Spinulum annotinum (Linnaeus) A. Haines USA: Maine Chesterville: Chesterville C. H. Knowlton 1909-7-8
Myricaceae
NEBC: 00563371 Myrica pensylvanica Mirbel USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-5-30
Onagraceae
NEBC: 01073588 Circaea canadensis canadensis (Linnaeus) Hill USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 01074518 Circaea sterilis Boufford USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 00707813 Oenothera fruticosa glauca (Michaux) Straley USA: Massachusetts Walpole: Walpole C. H. Knowlton 1909-6-27
NEBC: 00816190 Oenothera parviflora Linnaeus USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
Orchidaceae
NEBC: 00834455 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
NEBC: 00834457 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Massachusetts Sunderland: Sunderland C. H. Knowlton 1909-5-23
NEBC: 01016416 Goodyera tesselata Loddiges USA: Maine Mount Saddleback C. H. Knowlton 1909-8-17
NEBC: 01077206 Goodyera tesselata Loddiges USA: Maine Day Mountain C. H. Knowlton 1909-8-20
NEBC: 01062051 Platanthera clavellata (Michaux) Luer USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 01055852 Platanthera hookeri (Torrey ex A. Gray) Lindley USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-7-20
Orobanchaceae
NEBC: 00502016 Pedicularis canadensis Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00502018 Pedicularis canadensis Linnaeus USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00679589 Rhinanthus minor Linnaeus USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
Oxalidaceae
NEBC: 01028712 Oxalis dillenii Jacquin USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-10-2
Papaveraceae
NEBC: 00614033 Sanguinaria canadensis Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-22
Plantaginaceae
NEBC: 00745119 Callitriche heterophylla Pursh USA: Massachusetts Framingham: Framingham C. H. Knowlton 1909-9-6
NEBC: 00502338 Gratiola aurea Muhlenberg USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1909-9-12
NEBC: 00745310 Gratiola neglecta Torrey USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-7-30
NEBC: 00707147 Veronica americana Schweinitz ex Bentham USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-7-29
NEBC: 00656555 Veronica arvensis Linnaeus USA: Massachusetts Scituate: Scituate C. H. Knowlton 1909-6-19
NEBC: 00655414 Veronica officinalis Linnaeus USA: Maine Machias: Machias C. H. Knowlton 1909-7-12
Poaceae
NEBC: 00622483 Alopecurus pratensis Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 01175877 Anthoxanthum nitens (Weber) Y. Schouten & J. F. Veldkamp USA: Massachusetts Scituate: Scituate C. H. Knowlton 1909-6-6
NEBC: 00613103 Bromus hordeaceus Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-5-30
NEBC: 00865454 Bromus kalmii A. Gray USA: Massachusetts Mount Holyoke C. H. Knowlton 1909-7-29
GH: 00765938 Crypsis schoenoides (Linnaeus) Lamarck USA: Massachusetts Boston: South Boston, near railroad yard C. H. Knowlton 1909-9-18
NEBC: 00765939 Crypsis schoenoides (Linnaeus) Lamarck USA: Massachusetts Boston: South Boston, near railroad yard C. H. Knowlton 1909-9-18
NEBC: 00879735 Danthonia allenii Austin USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00635778 Dichanthelium depauperatum (Muhlenberg) Gould USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
NEBC: 00613885 Festuca rubra Linnaeus USA: Maine Roque Bluffs: Roque Bluffs C. H. Knowlton 1909-7-10
NEBC: 01149401 Glyceria obtusa (Muhlenberg) Trinius USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
NEBC: 00606162 Poa compressa Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 01150632 Puccinellia pumila (Vasey) Hitchcock USA: Massachusetts Barnstable Town C. H. Knowlton 1909-7-15
Polygalaceae
NEBC: 00711931 Polygala cruciata aquilonia Fernald & B. G. Schubert USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
Polygonaceae
NEBC: 00736875 Antenoron virginianum (Linnaeus) Roberty & Vautier USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-10-10
NEBC: 00645374 Polygonum cristatum Engelmann & A. Gray USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-9-5
NEBC: 00736875 Polygonum virginianum Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-10-10
Ranunculaceae
NEBC: 00866785 Clematis occidentalis (Hornemann) de Candolle USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
NEBC: 01013194 Hepatica americana (de Candolle) Ker Gawler USA: Maine New Vineyard: New Vineyard C. H. Knowlton 1909-8-24
NEBC: 01020840 Ranunculus aquatilis diffusus Withering USA: Massachusetts Walpole: Walpole C. H. Knowlton 1909-6-27
NEBC: 00517496 Ranunculus fascicularis Muhlenberg ex Bigelow USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
NEBC: 00753988 Ranunculus flammula filiformis (Michaux) Hooker USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00697694 Thalictrum amphibolum Greene USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-7-29
Rosaceae
NEBC: 00649670 Agrimonia gryposepala Wallroth USA: Massachusetts Ipswich: Ipswich C. H. Knowlton 1909-10-3
NEBC: 00744156 Aronia melanocarpa (Michaux) Elliott USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1909-9-12
NEBC: 00738761 Aronia prunifolia (Marshall) Rehder USA: Massachusetts Pembroke: Pembroke C. H. Knowlton 1909-9-12
NEBC: 00644143 Comarum palustre Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 01028569 Crataegus jonesiae Sargent USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00673180 Crataegus macracantha Loddiges ex Loudon USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00768258 Crataegus macracantha occidentalis (Britton) Eggleston USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00694490 Crataegus macrosperma Ashe USA: Maine Machias: Machias C. H. Knowlton 1909-7-14
NEBC: 00524136 Fragaria vesca americana Porter USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-22
NEBC: 00688646 Geum aleppicum strictum Fernald USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00524192 Potentilla argentea Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00710689 Potentilla canadensis Linnaeus USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 00710892 Potentilla egedii groenlandica (Trattinnick) Polunin USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 00644191 Potentilla pensylvanica litoralis (Rydberg) Boivin USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00644465 Potentilla simplex Michaux USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 00441967 Rubus allegheniensis Porter USA: Massachusetts Sudbury: Sudbury C. H. Knowlton 1909-5-30
NEBC: 00748375 Rubus hispidus Linnaeus USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00651186 Rubus hispidus Linnaeus USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
NEBC: 00651684 Rubus odoratus Linnaeus USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-7-29
NEBC: 00651757 Rubus pensilvanicus Poiret USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00641503 Rubus pubescens Rafinesque USA: Massachusetts Leverett: Leverett C. H. Knowlton 1909-5-23
NEBC: 00723910 Rubus pubescens Rafinesque USA: Maine Castine: Castine C. H. Knowlton 1909-7-8
NEBC: 00747025 Sorbus aucuparia Linnaeus USA: Massachusetts Marshfield: Marshfield C. H. Knowlton 1909-6-6
NEBC: 00659271 Spiraea latifolia (Aiton) Borkhausen USA: Maine Machias: Machias C. H. Knowlton 1909-7-13
Rubiaceae
NEBC: 00503674 Galium asprellum Michaux USA: Massachusetts Framingham: Framingham C. H. Knowlton 1909-9-6
NEBC: 00670882 Galium palustre Linnaeus USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
Salicaceae
NEBC: 00723381 Salix petiolaris Smith USA: Maine Northfield: Northfield C. H. Knowlton 1909-7-14
Saxifragaceae
NEBC: 01028063 Mitella diphylla Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-22
NEBC: 00730858 Ribes lacustre (Persoon) Poiret USA: Maine East Central Franklin C. H. Knowlton 1909-8-17
NEBC: 00730983 Ribes triste Pallas USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-23
NEBC: 00730984 Ribes triste Pallas USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-23
Scheuchzeriaceae
NEBC: 00635492 Scheuchzeria palustris americana Fernald USA: Massachusetts Sharon: Sharon C. H. Knowlton 1909-6-27
Scrophulariaceae
NEBC: 00707696 Mimulus ringens Linnaeus USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
Selaginellaceae
NEBC: 00632722 Selaginella rupestris (Linnaeus) Spring USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
Solanaceae
NEBC: 00576204 Datura stramonium Linnaeus USA: Massachusetts Hingham: Hingham C. H. Knowlton 1909-9-19
NEBC: 00630041 Physalis heterophylla Nees USA: Massachusetts Hanson: Hanson C. H. Knowlton 1909-9-12
Staphyleaceae
GH: 00752328 Staphylea trifolia Linnaeus USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
NEBC: 00752331 Staphylea trifolia Linnaeus USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
Thelypteridaceae
NEBC: 00701280 Phegopteris connectilis (Michaux) Watt USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
NEBC: 00631784 Phegopteris hexagonoptera (Michaux) Fée USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-24
Ulmaceae
NEBC: 00721789 Celtis occidentalis Linnaeus USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-22
Violaceae
NEBC: 00565760 Viola blanda Willdenow USA: Maine Strong: Strong C. H. Knowlton 1909-8-20
NEBC: 00560130 Viola blanda Willdenow USA: Massachusetts Hyannis C. H. Knowlton 1909-7-23
NEBC: 00501967 Viola cucullata Aiton USA: Maine Machias: Machias C. H. Knowlton 1909-6-12
NEBC: 00773336 Viola cucullata Aiton USA: Maine Farmington: Farmington C. H. Knowlton 1909-8-19
NEBC: 00569287 Viola lanceolata Linnaeus USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16
NEBC: 00760519 Viola palmata Linnaeus USA: Massachusetts South Hadley: South Hadley C. H. Knowlton 1909-5-22
NEBC: 00687478 Viola renifolia A. Gray USA: Maine Strong: Strong C. H. Knowlton 1909-8-20
NEBC: 00665444 Viola selkirkii Pursh USA: Maine Day Mountain C. H. Knowlton 1909-8-20
NEBC: 00665452 Viola selkirkii Pursh USA: Maine Strong: Strong C. H. Knowlton 1909-8-20
NEBC: 00649406 Viola sororia Willdenow USA: Massachusetts Amherst: Amherst C. H. Knowlton 1909-5-23
NEBC: 00640915 Viola sororia Willdenow USA: Maine Castine: Castine C. H. Knowlton 1909-7-6
Woodsiaceae
NEBC: 00695934 Woodsia ilvensis (Linnaeus) R. Brown USA: Maine East Machias: East Machias C. H. Knowlton 1909-7-16