Displaying 1 - 72 out of 72 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Trichophorum caespitosus | C. H. Knowlton 121 | 05 Jul 1893 | United States of America | Maine | Aroostook Co. About the mouth… | — |
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| Amelanchier bartramiana (Tausch) M.Roem. | C. H. Knowlton 47 | 4 Jul 1899 | United States of America | Maine | Franklin Co. Moist woods. Mt.… | — |
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| Rubus frondosus Bigelow | C. H. Knowlton | 23 Jun 1907 | United States of America | Massachusetts | Norfolk Co. | — |
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| Crypsis schoenoides (L.) Lam. | C. H. Knowlton 116 | 18 Sep 1909 | United States of America | Massachusetts | Very abundant on made land,… | — |
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| Crypsis schoenoides (L.) Lam. | C. H. Knowlton 116 | 18 Sep 1909 | United States of America | Massachusetts | Very abundant on made land,… | — |
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| Brachythecium plumosum (Hedw.) Schimp. | C. H. Knowlton | 16 Apr 1911 | United States of America | Massachusetts | Hingham | — | ||||
| Dichanthelium boreale (Nash) Gould & C.A.Clark | C. H. Knowlton s.n. | 4 Jul 1911 | United States of America | Maine | Franklin Co. Phillips | — |
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| Polytrichum commune Hedw. | C. H. Knowlton | 10 Jul 1911 | United States of America | Maine | Franklin Co. Farmington | — | ||||
| Rhytidiadelphus triquetrus (Hedw.) Warnst. | C. H. Knowlton | 30 Jul 1911 | United States of America | Maine | Washington Co. Machias | — | ||||
| Hylocomium splendens (Hedw.) Schimp. | C. H. Knowlton | 30 Jul 1911 | United States of America | Maine | Washington Co. Machias | — | ||||
| Polytrichum commune Hedw. | C. H. Knowlton | 01 Aug 1911 | United States of America | Maine | Washington Co. Roque Bluff | — | ||||
| Sphagnum capillifolium (Ehrh.) Hedw. | C. H. Knowlton s.n. | Aug 1911 | United States of America | Maine | Washington Co. Roque Bluff. | — | ||||
| Frullania asagrayana Mont. | C. H. Knowlton | 05 Aug 1911 | United States of America | Maine | Washington Co. Roque Bluff | — | ||||
| Hypnum plicatulum (Lindb.) A.Jaeger | C. H. Knowlton | 05 Aug 1911 | United States of America | Maine | Washington Co. Roque Bluff | — | ||||
| Dicranum polysetum Sw. | C. H. Knowlton | 05 Aug 1911 | United States of America | Maine | Washington Co. Roque Bluffs | — | ||||
| Herzogiella striatella (Brid.) Z.Iwats. | C. H. Knowlton | 06 Aug 1911 | United States of America | Maine | Washington Co. Roque Bluff | — | ||||
| Carex viridula Michx. | C. H. Knowlton s.n. | 15 Jul 1913 | United States of America | Maine | Washington Co. Shore of Boyden's… | — |
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| Carex viridula Michx. | C. H. Knowlton s.n. | 18 Jul 1913 | United States of America | Maine | Roque Bluffs. | — |
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| Carex paupercula Michx. | C. H. Knowlton 162 | 22 Jul 1913 | United States of America | Maine | Washington Co. Roque Bluffs. | — |
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| Carex pauciflora Lightf. | C. H. Knowlton 157 | 23 Jul 1914 | United States of America | Maine | Washington Co. Roque Bluffs. | — |
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| Tofieldia glutinosa (Michx.) Pers. | C. H. Knowlton Plantae Exsiccatae Grayanae351 | 10 Jul 1917 | United States of America | Vermont | Woodstock. | — |
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| Rumex pallidus Bigelow | C. H. Knowlton s.n. | 19 Aug 1924 | United States of America | Maine | Washington Co. Addison | — |
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| Drosera longifolia L. | C. H. Knowlton s.n. | 09 Sep 1925 | United States of America | Massachusetts | Plymouth Co. Cooper's Pond | — |
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| Aster spectabilis Sol. | C. H. Knowlton s.n. | 09 Sep 1925 | United States of America | Massachusetts | Plymouth Co. Dry field | — |
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| Eurybia radula (Sol. ex Aiton) G.L.Nesom | C. H. Knowlton 596 | 11 Aug 1931 | United States of America | Maine | Machias. | — |
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| Solidago macrophylla Pursh | C. H. Knowlton 592 | 21 Aug 1931 | United States of America | Maine | Roque Bluffs | — |
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| Solidago uliginosa Nutt. | C. H. Knowlton s.n. | 24 Aug 1931 - 30 Aug 1931 | United States of America | Maine | Washington Co. Roque Bluffs. | — |
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| Eriophorum tenellum Nutt. | C. H. Knowlton s.n. | 15 Aug 1932 | United States of America | Maine | Washington Co. Swale, Machias. | — |
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| Spartina patens (Aiton) Muhl. | C. H. Knowlton s.n. | 16 Aug 1932 | United States of America | Maine | Washington Co. | — |
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| Symphyotrichum lanceolatum (Willd.) G.L.Nesom | C. H. Knowlton 883 | 15 Aug 1934 | United States of America | Maine | Washington Co. shore of Machias… | — |
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| Eriophorum virginicum L. | C. H. Knowlton s.n. | 28 Aug 1934 | United States of America | Maine | Washington Co. Roque Bluffs. | — |
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| Solidago speciosa Nutt. var. speciosa | C. H. Knowlton 696 | 06 Sep 1934 | United States of America | Massachusetts | Plymouth Co. Open woods by… | — |
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| Muhlenbergia uniflora (Muhl.) Fernald | C. H. Knowlton s.n. | 08 Aug 1935 | United States of America | Maine | Washington Co. Steuben | — |
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| Waldsteinia fragarioides (Michx.) Tratt. | C. H. Knowlton 55759 | 08 May 1936 | United States of America | Vermont | Rutland Co. | — |
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| Carex silicea Olney | C. H. Knowlton s.n. | 11 Jun 1936 | United States of America | Massachusetts | Barnstable Co. Near Chatham | — |
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| Dichanthelium depauperatum (Muhl.) Gould | C. H. Knowlton | 11 Jun 1936 | United States of America | Massachusetts | Barnstable Co. | — |
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| Triglochin maritima L. | C. H. Knowlton s.n. | 30 Jun 1936 | United States of America | Maine | Washington Co. | — |
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| Ledum palustre subsp. groenlandicum (Oeder) Hultén | C. H. Knowlton s.n. | 30 Jun 1936 | United States of America | Maine | Washington Co. | — |
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| Potentilla tridentata Aiton | C. H. Knowlton 55071 | 30 Jun 1936 | United States of America | Maine | Washington Co. | — |
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| Carex lanuginosa Michx. | C. H. Knowlton s.n. | 08 Jul 1936 | United States of America | Vermont | Grand Isle Co. | — |
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| Glyceria melicaria (Michx.) F.T.Hubb. | C. H. Knowlton s.n. | 12 Jul 1936 | United States of America | Vermont | Addison Co. Near Hancock. | — |
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| Carex retrorsa Schwein. | C. H. Knowlton s.n. | 15 Jul 1936 | United States of America | Vermont | Addison Co. Weybridge. | — |
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| Trifolium procumbens L. | C. H. Knowlton s.n. | 26 Jul 1936 | United States of America | Maine | Washington Co. | — |
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| Platanthera clavellata (Michx.) Luer | C. H. Knowlton s.n. | 31 Jul 1936 | United States of America | Maine | Washington Co. Rogue Bluffs | — |
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| Spiranthes lacera (Raf.) Raf. | C. H. Knowlton s.n. | 31 Jul 1936 | United States of America | Maine | Washington Co. Blueberry pasture. Rogue… | — |
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| Malaxis unifolia Michx. | C. H. Knowlton s.n. | 31 Jul 1936 | United States of America | Maine | Washington Co. Dry blueberry barren,… | — |
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| Vaccinium macrocarpon Aiton | C. H. Knowlton s.n. | 03 Aug 1936 | United States of America | Maine | Washington Co. | — |
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| Dalibarda repens L. | C. H. Knowlton s.n. | 03 Aug 1936 | United States of America | Maine | Washington Co. Roque Bluffs | — |
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| Eleocharis tenuis var. tenuis | C. H. Knowlton s.n. | 03 Aug 1936 | United States of America | Maine | Washington Co. Peat bog, Roque… | — |
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| Carex flava L. | C. H. Knowlton s.n. | 05 Aug 1936 | United States of America | Maine | Washington Co. Near Centreville | — |
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| Rhododendron canadense (L.) Torr. | C. H. Knowlton 33712 | Aug 5 1936 | United States of America | Maine | Washington Co. Centreville | — |
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| Avenella flexuosa (L.) Drejer | C. H. Knowlton s.n. | 08 Aug 1936 | United States of America | Maine | Washington Co. Roque Bluffs | — |
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| Carex oederi Retz. | C. H. Knowlton s.n. | 08 Aug 1936 | United States of America | Maine | Washington Co. Near Roque Bluffs | — |
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| Empetrum nigrum L. | C. H. Knowlton s.n. | 08 Aug 1936 | United States of America | Maine | Washington Co. | — |
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| Juncus pelocarpus E.Mey. | C. H. Knowlton s.n. | 11 Aug 1936 | United States of America | Maine | Washington Co. Shore of Lily… | — |
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| Scheuchzeria palustris L. | C. H. Knowlton s.n. | 11 Aug 1936 | United States of America | Maine | Washington Co. | — |
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| Utricularia cornuta Michx. | C. H. Knowlton s.n. | 11 Aug 1936 | United States of America | Maine | Washington Co. Wet gravelly shore… | — |
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| Drosera rotundifolia L. | C. H. Knowlton | 11 Aug 1936 | United States of America | Maine | Washington Co. Shore of Lily… | — |
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| Gaultheria procumbens L. | C. H. Knowlton s.n. | 11 Aug 1936 | United States of America | Maine | Washington Co. | — |
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| Rhynchospora capitellata (Michx.) Vahl | C. H. Knowlton s.n. | 11 Aug 1936 | United States of America | Maine | Washington Co. Lily lake | — |
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| Rubus idaeus subsp. sachalinensis (H.Lév.) Focke | C. H. Knowlton | 11 Aug 1936 | United States of America | Maine | Washington Co. | — |
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| Carex longii Mack. | C. H. Knowlton s.n. | 07 Sep 1936 | United States of America | Massachusetts | Plymouth Co. Shore of College… | — |
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| Carex mesochorea Mack. | C. H. Knowlton s.n. | 29 Jun 1939 | United States of America | Vermont | Bennington Co. Big Pond, Woodford | — |
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| Carex mesochorea Mack. | C. H. Knowlton s.n. | 29 Jun 1939 | United States of America | Vermont | Bennington Co. Big Pond, Woodford | — |
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| Carex michauxiana Boeckeler | C. H. Knowlton s.n. | 29 Jun 1939 | United States of America | Vermont | Bennington Co. Wet shore. Big… | — |
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| Solidago rugosa var. aspera (Aiton) Fernald | C. H. Knowlton | 02 Sep 1946 | United States of America | Massachusetts | Plymouth Co. | — |
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| Amelanchier laevis Wiegand | C. H. Knowlton 349 | May | United States of America | Maine | Franklin Co. Farmington. | — |
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| Oclemena nemoralis (Aiton) Greene | C. H. Knowlton 597 | August 27, 30, 1931 | United States of America | Maine | Washington Co. | — |
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| Carex albicans var. emmonsii (Dewey ex Torr.) Rettig | C. H. Knowlton 56592 | 5-10-1936 | United States of America | Massachusetts | Plymouth Co. Norwell. | — |
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| Carex albursina E.Sheld. | C. H. Knowlton sn. | 5-22-36 | United States of America | Vermont | Rich deciduous woods, Milton, Crittenden… | — |
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| Carex mesochorea Mack. | C. H. Knowlton s.n. | 8-5-1932 | United States of America | Maine | Washington Co. Crawford | — |
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| Carex tonsa (Fernald) E.P.Bicknell | C. H. Knowlton s.n. | 6-4-1936 | United States of America | Massachusetts | Plymouth Co. | — |
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