Displaying 2551 - 2574 out of 2574 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Myriopteris intertexta (Maxon) Maxon | J. T. Howell 30145 | 06 Mar 1955 | United States of America | California | Contra Costa Co. Deep crevices… | — |
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| Myriopteris intertexta (Maxon) Maxon | J. T. Howell 30145 | 06 Mar 1955 | United States of America | California | Contra Costa Co. In deep… | — |
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| Pellaea mucronata D.C. Eaton | J. T. Howell 26310 | 30 Apr 1950 | United States of America | California | Marin Co. Among rocks, East… | — |
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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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| Selaginella cinerascens A.A.Eaton | J. T. Howell 2948 | 06 Aug 1927 | United States of America | California | San Diego Co. Sand slopes… | — |
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| Isoetes orcuttii A.A.Eaton | J. T. Howell 4175 | 20 Apr 1929 | United States of America | California | Merced Co. Muddy margin of… | — |
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| Equisetum arvense L. | J. T. Howell 15415 | 12 May 1940 | United States of America | California | Marin Co. Lagunitas Creek | — |
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| Asclepias fascicularis Decne. | J. T. Howell 43610 | 08 Aug 1967 | United States of America | California | Inyo Co. Sierra Nevada. Nine… | — |
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| Polystichum californicum (D.C. Eaton) Diels | J. T. Howell 24309 | 22 May 1948 | United States of America | California | Marin Co. Camp Tucker, Mt.… | — |
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| Polystichum californicum (D.C. Eaton) Diels | J. T. Howell 24308 | 22 May 1948 | United States of America | California | Marin Co. Camp Tucker, Mt.… | — |
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| Chlorogalum angustifolium Kellogg | J. T. Howell 37420 | 15 Jun 1962 | United States of America | California | Butte Co. 5 miles west… | — |
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| Toxicoscordion fontanum (Eastw.) Zomlefer & Judd | J. T. Howell 13085 | 04 Jul 1937 | United States of America | California | Marin Co. Tiburon | — |
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| Marah fabacea (Naudin) Greene | J. T. Howell 10903 | 29 Mar 1933 | United States of America | California | Contra Costa Co. Nortonville hills | — |
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| Eschscholzia minutiflora S.Watson | J. T. Howell 33596 | 28 May 1958 | United States of America | California | Inyo Co. Sierra Nevada. Bishop… | — |
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| Dryopteris arguta (Kaulf.) Watt | J. T. Howell 24337 | 06 Jun 1948 | United States of America | California | Marin Co. Mt. Tamalpais. | — |
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| Campanula angustiflora Eastw. | J. T. Howell 21818 | 12 May 1946 | United States of America | California | Marin Co. Shale area, Carson… | — |
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| Nemacladus sigmoideus G.T.Robbins | J. T. Howell 33372 | 25 May 1958 | United States of America | California | Inyo Co. Sierra Nevada. Morainal… | — |
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| Rhamnus californica subsp. cuspidata (Greene) C.B.Wolf | J. T. Howell 47275 | 22 Sep 1970 | United States of America | California | Kern Co. Along Kern River… | — |
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| Allium acuminatum Hook. | J. T. Howell 43295 | 11 Jul 1967 | United States of America | California | Plumas Co. 2.5 miles from… | — |
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| Allium amplectens Torr. | J. T. Howell 18186 | 30 May 1943 | United States of America | California | Marin Co. Northside Trail, Mt.… | — |
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| Verbascum virgatum Stokes | J. T. Howell 52610 | 10 Aug 1977 | United States of America | Nevada | Washoe Co. Along Highway 395… | — |
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| Critoniopsis littoralis (Brandegee) H.Rob. | J. T. Howell 8407 | 27 Mar 1932 | Mexico | Colima | Revillagigedo Islands, above Braithwaite Bay,… | — |
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| Malacothamnus fasiculatus subsp. exfibulosus (Jeps.) D.M.Bates | J. T. Howell 26635 | 05 Jul 1950 | United States of America | California | Contra Costa Co. Nortonville | — |
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| Hemizonia greeneana Rose | J. T. Howell 8186 | 16 Nov 1931 | Mexico | Baja California | just back of beach, melpomone… | — |
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