Displaying 2001 - 2050 out of 2137 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Chara vulgaris L. | R. T. Clausen | W. A. Hinkey 4038 | 24 Aug 1939 | — | — | — | |||||
| Broussonetia papyrifera (L.) L'Hér. ex Vent. | R. T. Clausen 6851 | 23 Jun 1946 | United States of America | Virginia | — |
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| Toxicodendron radicans (L.) Kuntze | R. T. Clausen 6009 | 20 Jun 1943 | United States of America | New York | — |
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| Lathyrus maritimus Bigelow | R. T. Clausen 59-88 | 14 Aug 1959 | Canada | Quebec | island east of falls 6… | — |
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| Isoetes tuckermanii A.Braun | R. T. Clausen 2771 | 19 Aug 1937 | Canada | Quebec | Quebec, St. Lawrence Valley. Gravelly… | — |
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| Spinulum canadense (Nessel) A.Haines | R. T. Clausen 2865 | 26 Aug 1937 | Canada | Quebec | Gaspé. Gaspé Peninsula. In open… | — |
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| Polystichum acrostichoides (Michx.) Schott | R. T. Clausen 2867 | 26 Aug 1937 | Canada | Quebec | Gaspé. On steep wooded slope… | — |
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| Botrychium virginianum (L.) Sw. | R. T. Clausen 3131 | 26 Aug 1937 | Canada | Quebec | Gaspé. In rich woods below… | — |
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| Equisetum sylvaticum L. | R. T. Clausen 2873 | 27 Aug 1937 | Canada | Quebec | Gaspé. Gaspé Peninsula. In moist… | — |
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| Polystichum acrostichoides (Michx.) Schott | R. T. Clausen 2896 | 30 Aug 1937 | Canada | Quebec | Gaspé. In spruce woods along… | — |
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| Diphasiastrum complanatum (L.) Holub | R. T. Clausen 2902 | 30 Aug 1937 | Canada | Quebec | Gaspé. Gaspé Peninsula. In birch… | — |
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| Polystichum lonchitis (L.) Roth | R. T. Clausen 2946 | 04 Sep 1937 | Canada | Quebec | Gaspé. Cap des Rosiers | — |
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| Dryopteris filix-mas (L.) Schott | R. T. Clausen 2968 | 06 Sep 1937 | Canada | Quebec | Gaspé. In woods, north side… | — |
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| Botrychium lunaria (L.) Sw. | R. T. Clausen 2980 | 07 Sep 1937 | Canada | Quebec | Gaspé. Summit of Mt. Ste.Anne,… | — |
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| Cystopteris bulbifera (L.) Bernh. | R. T. Clausen 3070 | 17 Sep 1937 | Canada | Quebec | Lake St. John Co., Limestone… | — |
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| Equisetum hyemale var. affine (Engelm.) A.A.Eaton | R. T. Clausen 2926 | 01 Sep 1937 | Canada | Quebec | Gaspé Peninsula. Rivière Marsoui, Ste.… | — |
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| Cystopteris bulbifera (L.) Bernh. | R. T. Clausen 2901 | 30 Aug 1937 | Canada | Quebec | Gaspé. Along wagon road, 13… | — |
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| Polystichum lonchitis (L.) Roth | R. T. Clausen 2946 | 04 Sep 1937 | Canada | Quebec | Gaspé. Cap des Rosiers | — |
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| Asplenium viride Huds. | R. T. Clausen 2951 | 04 Sep 1937 | Canada | Quebec | Gaspé. Southwest of Cap des… | — |
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| Athyrium angustum (Willd.) C.Presl | R. T. Clausen 3064 | 06 Sep 1937 | Canada | Quebec | Gaspé. On northeast side of… | — |
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| Equisetum variegatum Schleich. ex F.Weber & D.Mohr var. variegatum | R. T. Clausen 2988 | 08 Sep 1937 | Canada | Quebec | Bonaventure Reg. Co. Mun. Gaspé… | — |
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| Equisetum hyemale var. affine (Engelm.) A.A.Eaton | R. T. Clausen 3010 | 10 Sep 1937 | Canada | Quebec | Bonaventure Reg. Co. Mun. Gaspé… | — |
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| Spinulum annotinum (L.) A.Haines | R. T. Clausen 3043 | 16 Sep 1937 | Canada | Quebec | Le Fjord-du-Saguenay Reg. Co. Mun.… | — |
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| Diphasiastrum digitatum (A.Braun) Holub | R. T. Clausen 3044 | 16 Sep 1937 | Canada | Quebec | Le Fjord-du-Saguenay Reg. Co. Mun.… | — |
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| Equisetum variegatum Schleich. ex F.Weber & D.Mohr var. variegatum | R. T. Clausen 2802 | 20 Aug 1937 | Canada | Quebec | Montmagny Reg. Co. Mun. St.… | — |
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| Botrychium lanceolatum (S.G.Gmel.) Ångstr. | R. T. Clausen 3052 | 22 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Dryopteris marginalis (L.) A.Gray | R. T. Clausen 2840 | 23 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Botrychium lanceolatum (S.G.Gmel.) Ångstr. | R. T. Clausen 3052 | 22 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Polypodium virginianum L. | R. T. Clausen 2838 | 23 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Cystopteris fragilis (L.) Bernh. | R. T. Clausen 2814 | 21 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Diphasiastrum complanatum (L.) Holub | R. T. Clausen 2839 | 23 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Dryopteris fragrans (L.) Schott | R. T. Clausen 2846 | 23 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Woodsia glabella R.Br. | R. T. Clausen 2835a | 23 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Cystopteris fragilis (L.) Bernh. | R. T. Clausen 2836 | 23 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Thelypteris palustris (A.Gray) Schott | R. T. Clausen 2740 | 17 Aug 1937 | Canada | Quebec | Sedgy meadow 3 miles northeast… | — |
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| Lycopodium clavatum L. | R. T. Clausen 2742 | 17 Aug 1937 | Canada | Quebec | New England Upland. Dry birch… | — |
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| Cystopteris fragilis (L.) Bernh. | R. T. Clausen 2831 | 22 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Asplenium viride Huds. | R. T. Clausen 2832 | 22 Aug 1937 | Canada | Quebec | Rimouski-Neigette Reg. Co. Mun. Rimouski.… | — |
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| Isoetes tuckermanii A.Braun | R. T. Clausen 2778 | 19 Aug 1937 | Canada | Quebec | Communauté-Urbaine-de-Québec. St. Lawrence Valley. Tidal… | — |
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| Osmunda claytoniana L. | R. T. Clausen 3435 | 21 May 1938 | Canada | Ontario | about 1 mile west of… | — |
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| Rauvolfia tetraphylla L. | R. T. Clausen 6167 | 22 Sep 1943 | Guatemala | — | Roadside bank south of Concua | — |
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| Haplophyton cimicidum A.DC. | R. T. Clausen 6187 | 01 Oct 1943 | Guatemala | — | Rocky roadside and slope, Jampu | — |
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| Kalanchoe pinnata (Lam.) Pers. | R. T. Clausen 6154 | 20 Sep 1943 | Guatemala | Santa Rosa | beside trail 1 km northeast… | — |
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| Pteridium caudatum (L.) Maxon | R. T. Clausen 6178 | 27 Sep 1943 | Guatemala | Izabal | 2 km. west-northwest of Quiriguá | — |
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| Pellaea cordifolia (Sessé & Moc.) A.R.Sm. | R. T. Clausen 1 | 25 Nov 1955 | Mexico | México | Pedregal of San Angel, southwest… | — |
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| Heterocentron mexicanum Hook. & Arn. | R. T. Clausen s.n. | 6 Dec 1955 | Mexico | Michoacán | 1 km southwest of San… | — |
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| Polystichum rachichlaena Fée | R. T. Clausen 7523 | 2 Apr 1949 | Mexico | Ciudad de México | 2 km southwest of Desierto… | — |
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| Persicaria longiseta (Bruijn) Kitag. | R. T. Clausen 6693 | 16 Aug 1945 | United States of America | New York | Tompkins Co. Fairview Manor, Oak… | — |
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| Sedum rosea subsp. integrifolium (Raf.) Hultén | R. T. Clausen 621063 | 06 Jul 1942 | United States of America | Colorado | Under large boulder on western… | — |
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| Viburnum cassinoides L. | R. T. Clausen 5523 | 17 Aug 1941 | United States of America | New York | Fulton Co. in open woods… | — |
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