Displaying 2026 - 2050 out of 2137 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Prunus depressa Pursh | R. T. Clausen s.n. | 30 May 1903 | United States of America | New York | Orange Co. Palisades, Delaware river,… | — |
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| Frommeëlla tormentillae (Fuckel) Cummins & Y.Hirats. | R. T. Clausen s.n. | 01 Aug 1948 | United States of America | New York | Browne County: Hill South of… | — |
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| Rubus pergratus Blanch. | R. T. Clausen s.n. | 30 May 1903 | United States of America | New York | Orange Co. Palisades, Delaware river,… | — |
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| Rubus pergratus Blanch. | R. T. Clausen s.n. | 30 May 1903 | United States of America | New York | Orange Co. Palisades, Delaware river,… | — |
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| Nectria episphaeria (Tode:Fr.) Fr. | R. T. Clausen s.n. | 25 Sep 1949 | United States of America | New York | Cortland Co. South Hill, near… | — |
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| Puccinia canaliculata (Schwein.) Lagerh. | R. T. Clausen s.n. | 31 Jul 1949 | United States of America | New York | Broome Co. Along Susquehannah River,… | — |
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| Plagiochasma rupestre (G.Forst.) Steph. | R. T. Clausen s.n. | 22 Sep 1955 | Mexico | — | On cliff of conglomerate on… | — |
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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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| Gnaphalium vulcanicum I.M.Johnst. | R. T. Clausen s.n. | 24 Oct 1955 | Mexico | — | Barranca de Mala Cara, south-southeastern… | — |
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| Myriopteris myriophylla (Desv.) J.Sm. | R. T. Clausen s.n. | 15 Sep 1955 | Mexico | Morelos | northern bank of railroad just… | — |
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| Myriopteris myriophylla (Desv.) J.Sm. | R. T. Clausen s.n. | 25 Nov 1955 | Mexico | Ciudad de México | on lava 5 m. east… | — |
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| Mimosa biuncifera Benth. | R. T. Clausen s.n. | 23 Aug 1955 | Mexico | Tlaxcala | Apetatitlán de Antonio Carvajal Mun.… | — |
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| Baccharis conferta Kunth | R. T. Clausen s.n. | 3 Aug 1955 | Mexico | Veracruz | Las Vigas de Ramirez Mun.… | — |
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| Sedum rosea subsp. integrifolium (Raf.) Hultén | R. T. Clausen SR-134 | 21 Jul 1962 | United States of America | Colorado | In canyon of west branch… | — |
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| Grindelia aphanactis Rydb. | R. T. Clausen SR227 | 26 Aug 1962 | United States of America | New Mexico | San Miguel Co. On southeast… | — |
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| Sedum lucidum R.T.Clausen | R. T. Clausen TMV-0-RB6 | 22 Jan 1960 | United States of America | New York | Tompkins Co. greenhouse | — |
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| Sedum quevae Raym.-Hamet | R. T. Clausen TMV-M-SB3 | 09 May 1956 | United States of America | New York | Tompkins Co. Greenhouse | — |
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| Sedum hemsleyanum Rose | R. T. Clausen TMV-O-M3 | 01 Jan 1957 | United States of America | New York | Tompkins Co. Greenhouse | — |
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| Sedum cormiferum R.T.Clausen | R. T. Clausen TMV-T-TG102 | 25 Apr 1956 | United States of America | New York | Tompkins Co. Greenhouse | — |
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| Sedum anglicum Huds. | R. T. Clausen U238 | 09 Jun 1951 | United States of America | New York | Tompkins Co. Greenhouse | — |
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| Barbula unguiculata Hedw. | R. T. Clausen | 03 Apr 1940 | United States of America | New Jersey | Bergen Co. On aqueduct N… | — | ||||
| Braunia secunda (Hook.) Bruch & Schimp. | R. T. Clausen | 01 Sep 1955 | Mexico | Guerrero | Along trail running northeast from… | — | ||||
| Eriogonum umbellatum var. nevadense Gand. | R. T. Clausen | — | United States of America | California | Mono Co. Sierra Nevada. Pacific… | — |
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| Russula emetica var. gregaria Kauffman | R. T. Clausen | 03 Oct 1948 | United States of America | New York | Seneca Co. Junius bogs | — | ||||
| Psathyrella obtusata (Pers.) A.H.Sm. | R. T. Clausen | 25 Sep 1949 | United States of America | New York | Cortland Co. South Hill, Virgil | — |