Displaying 2351 - 2375 out of 2574 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Notothylas galapagensis M.Howe | J. T. Howell 187p.p. | 04 Jun 1932 | Ecuador | Galápagos | James Bay | type |
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| Notothylas galapagensis M.Howe | J. T. Howell 187p.p. | 04 Jun 1932 | Ecuador | Galápagos | James Bay | type |
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| Sedum obtusatum subsp. retusum (Rose) R.T.Clausen | J. T. Howell 19281A | 11 Aug 1943 | United States of America | California | Glenn Co. Canyon of Snow… | — |
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| Carex globosa Boott | J. T. Howell 19368A | 02 Apr 1944 | United States of America | California | Marin Co. Southeast of Laurel… | — |
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| Lupinus polyphyllus var. polyphyllus | J. T. Howell 2750B | — | — | — | — |
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| Selaginella bigelovii Underw. | J. T. Howell 2886A | 01 Aug 1927 | United States of America | California | Riverside Co. Morongo Canyon, n.… | — |
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| Achnatherum occidentale (Thurb. ex S.Watson) Barkworth | J. T. Howell 35341A | 06 Jun 1960 | United States of America | California | Fresno Co. Copper Creek Trail,… | — |
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| Penstemon speciosus subsp. kennedyi (A.Nelson) D.D.Keck | J. T. Howell 39770A | 11 Jul 1963 | United States of America | Nevada | Washoe Co. About 3 miles… | — |
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| Chrysothamnus viscidiflorus (Hook.) Nutt. subsp. viscidiflorus | J. T. Howell 43663A | 09 Aug 1967 | United States of America | California | Tulare Co. The Sierra Nevada.… | — |
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| Senecio atratus Greene | J. T. Howell 45347a | 14 Sep 1968 | United States of America | Utah | Garfield Co. At Bryce Point,… | — |
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| Chrysothamnus viscidiflorus (Hook.) Nutt. subsp. viscidiflorus | J. T. Howell 49062A | 16 Sep 1972 | United States of America | Nevada | Washoe Co. The Sierra Nevada.… | — |
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| Oenothera deltoides var. piperi Munz | J. T. Howell 49230A | 12 May 1973 | United States of America | California | Lassen Co. On Highway 395… | — |
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| Solanum nitidibaccatum Bitter | J. T. Howell 50146A | 01 Aug 1973 | United States of America | California | Lassen Co. Near Susanville, Diamond… | — |
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| Trifolium fragiferum L. | J. T. Howell 51944a | 19 Jul 1976 | United States of America | California | Lassen Co. Susanville | — |
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| Pinus muricata D.Don | J. T. Howell 53360A | 24 Mar 1980 | United States of America | California | San Francisco Co. Kennedy Drive… | — | ||||
| Pinus muricata D.Don | J. T. Howell 53360A | 24 Mar 1980 | United States of America | California | San Francisco Co. Kennedy Drive… | — |
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| Carex hoodii Boott | J. T. Howell 54543A | 12 Aug 1981 | United States of America | California | Mono Co. Sierra Nevada. Just… | — |
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| Bromus tectorum L. | J. T. Howell 75687A | 13 May 1969 | United States of America | California | Kern Co. Sierra Nevada. Spanish… | — |
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| Brachycereus nesioticus (K.Schum. ex B.L.Rob.) Backeb. | J. T. Howell 9631A | 1 Jun 1932 | Ecuador | — | Southeast side, Narbourough Island. Flora… | — |
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| Philonotis fontana (Hedw.) Brid. var. fontana | J. T. Howell Cobb16 | 23 Jul 1947 | United States of America | California | San Bernardino Co. S fork… | — | ||||
| Arctostaphylos patula Greene | J. T. Howell Gordon True; Walter and Irja Knight2414 | 11 Jun 1968 | United States of America | California | Plumas Co. The Sierra Nevada.… | — |
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| Claopodium whippleanum (Sull.) Renauld & Cardot | J. T. Howell H-10 | Apr 1949 | United States of America | California | Contra Costa Co. Vicinity of… | — | ||||
| Pleuridium subulatum (Hedw.) Rabenh. | J. T. Howell H-92 | 06 Apr 1949 | United States of America | California | — | |||||
| Pleuridium acuminatum Lindb. | J. T. Howell H-147 | 26 Apr 1954 | United States of America | California | — | |||||
| Barbula vinealis Brid. | J. T. Howell H-192 | 24 Apr 1949 | United States of America | California | Marin Co. Angel Island | — |