Displaying 2026 - 2050 out of 2137 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Ophioglossum reticulatum L. | R. T. Clausen 6216 | 15 Oct 1943 | Mexico | Veracruz | along trail half way up… | — |
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| Myriopteris aurea (Poir.) Grusz & Windham | R. T. Clausen 2 | 03 Aug 1955 | Mexico | Veracruz | Northeast of Cofre de Perote,… | — |
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| Pteridium feei (W.Schaffn. & Fée) Faull | R. T. Clausen s.n. | 03 Aug 1955 | Mexico | Veracruz | northeast of Cofre de Perote,… | — |
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| Mildella intramarginalis (Kaulf. & Link) Trevis. | R. T. Clausen s.n. | 05 Aug 1955 | Mexico | Veracruz | on lava northeast of Cofre… | — |
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| Pteridium arachnoideum (Kaulf.) Maxon | R. T. Clausen s.n. | 06 Aug 1955 | Mexico | Veracruz | slope between Totoutla and Ohuapa,… | — |
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| Ophioglossum reticulatum L. | R. T. Clausen s.n. | 08 Aug 1955 | Mexico | Veracruz | Municipio de Axocuapan, Barranca Tlilapa,… | — |
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| Pleopeltis acicularis (Weath.) A.R.Sm. & T.Krömer | R. T. Clausen s.n. | 08 Aug 1955 | Mexico | Veracruz | Barranca de Cuautilla, Municipio de.… | — |
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| Cladonia rangiferina var. abbayesii Ahti | R. T. Clausen s.n. | 01 Nov 1955 | Mexico | Veracruz | Trans-Mexican volcanic belt, Vera Cruz,… | — |
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| Ophioglossum reticulatum L. | R. T. Clausen 6216 | 15 Oct 1943 | Mexico | Veracruz | Orizaba Mun. Along trail half… | — |
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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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| Picea rubens Sarg. | R. T. Clausen 8128 | 13 Oct 1951 | United States of America | Vermont | Franklin Co. North Hill, Montgomery… | — |
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| Picea glauca (Moench) Voss | R. T. Clausen s.n. | 16 Jul 1956 | United States of America | Vermont | Orleans Co. South of junction… | — |
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| Sphagnum rubellum Wilson | R. T. Clausen 7140 | 17 Aug 1947 | United States of America | Vermont | Franklin Co. 2 km. south… | — | ||||
| Astragalus robbinsii var. minor (Hook.) Barneby | R. T. Clausen 7966 | 20 Jun 1950 | United States of America | Vermont | Windsor Co. Along Connecticut River… | — |
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| Astragalus robbinsii var. minor (Hook.) Barneby | R. T. Clausen 5914 | 29 Aug 1942 | United States of America | Vermont | Orleans Co. Ledges and slides… | — |
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| Astragalus robbinsii var. minor (Hook.) Barneby | R. T. Clausen 7980 | 25 Jun 1950 | United States of America | Vermont | Orleans Co. Base of cliffs,… | — |
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| Carex concolor R.Br. | R. T. Clausen 8360 | 24 Jun 1953 | United States of America | Vermont | Chittenden Co. Mt. Mansfield Quadrangle,… | — |
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| Alnus sinuata (Regel) Rydb. | R. T. Clausen 5918 | 29 Aug 1942 | United States of America | Vermont | Orleans Co. On talus slide… | — |
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| Salix eriocephala var. eriocephala | R. T. Clausen 8363 | 27 Jun 1953 | United States of America | Vermont | Franklin Co. Mt. Mansfield Quadrangle.… | — |
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| Betula alba L. | R. T. Clausen 7969 | 22 Jun 1950 | United States of America | Vermont | Chittenden Co. Near summit of… | — |
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| Betula populifolia Marshall | R. T. Clausen 7893 | 19 Aug 1949 | United States of America | Vermont | Franklin Co. Sheldon Springs | — |
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| Kalmia polifolia Wangenh. | R. T. Clausen 7142 | 17 Aug 1947 | United States of America | Vermont | Franklin Co. Bog 2 km… | — |
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| Amphicarpaea bracteata (L.) Fernald | R. T. Clausen 5929 | Sep 1 1942 | United States of America | Vermont | Franklin Co. In moist woods… | — |
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| Apios americana Medik. | R. T. Clausen 7159 | Aug 22 1947 | United States of America | Vermont | Franklin Co. Bank of Missisquoi… | — |
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| Spinulum canadense (Nessel) A.Haines | R. T. Clausen 5922 | 31 Aug 1942 | United States of America | Vermont | Orleans Co. Near summit of… | — |
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