Displaying 26 - 50 out of 2574 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Sporobolus contractus Hitchc. | J. T. Howell 45016 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. 7 miles southwest… | — |
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| Sporobolus flexuosus (Thurb.) Rydb. | J. T. Howell 45022 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. 7 miles southwest… | — |
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| Artemisia campestris subsp. pacifica (Nutt.) H.M.Hall & Clem. | J. T. Howell 45188 | 12 Sep 1968 | United States of America | Arizona | Coconino Co. Sunset Crater National… | — |
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| Artemisia ludoviciana subsp. albula (Wooton) D.D.Keck | J. T. Howell 45043 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. Artist's Poiont, Monument… | — |
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| Artemisia ludoviciana subsp. albula (Wooton) D.D.Keck | J. T. Howell 45044 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. Artist's Poiont, Monument… | — |
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| Bidens heterosperma A.Gray | J. T. Howell 45196 | 12 Sep 1968 | United States of America | Arizona | Coconino Co. Sunset Crater National… | — |
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| Chrysothamnus nauseosus (Pall.) Britton | J. T. Howell 45039 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. near Elephant Butte,… | — |
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| Chrysothamnus nauseosus subsp. bigelovii (A.Gray) H.M.Hall & Clem. | J. T. Howell 45032 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. near Merrick Butte,… | — |
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| Chrysothamnus nauseosus subsp. graveolens (Nutt.) Piper | J. T. Howell 45032 | 10 Sep 1968 | United States of America | Arizona | Navajo Co. near Merrick Butte,… | — |
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| Chrysothamnus nauseosus var. oreophilus (A.Nelson) H.M.Hall | J. T. Howell 45138 | 11 Sep 1968 | United States of America | Arizona | Coconino Co. Schultz Pass, San… | — |
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| Vicia pulchella Kunth | J. T. Howell 45096 | 11 Sep 1968 | United States of America | Arizona | Coconino Co. Canyon slope, 4… | — |
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| Gnaphalium exilifolium A.Nelson | J. T. Howell 45144 | 11 Sep 1968 | United States of America | Arizona | Coconino Co. Schultz Pass, San… | — |
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| Grindelia aphanactis Rydb. | J. T. Howell 45165 | 11 Sep 1968 | United States of America | Arizona | Coconino Co. Northern suburbs of… | — |
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| Machaeranthera canescens var. ambigua B.L.Turner | J. T. Howell 45212 | 12 Sep 1968 | United States of America | Arizona | Coconino Co. 8.5 miles from… | — |
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| Machaeranthera linearifolia (T.J.Watson) Cronquist | J. T. Howell 45266 | 13 Sep 1968 | United States of America | Arizona | Coconino Co. Kaibab Plateau, 13.4… | — |
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| Perityle congesta (M.E.Jones) Shinners | J. T. Howell 26381 | 22 May 1950 | United States of America | Arizona | Coconino Co. Hualpai Canyon. Grand… | — |
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| Phacelia hastata Douglas ex Lehm. var. hastata | J. T. Howell 45183 | 12 Sep 1968 | United States of America | Arizona | Coconino Co. Sunset Crater National… | — |
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| Quercus chrysolepis Liebm. | J. T. Howell 8173 | 14 Nov 1931 | Mexico | Baja California | Above the barracks, Guadalupe Island | — |
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| Phacelia ixodes A.Gray | J. T. Howell 10678 | 16 Aug 1932 | Mexico | Baja California | Cedros Island, Southeast side | — |
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| Phacelia ixodes var. plumosa Brand | J. T. Howell 10715 | 19 Aug 1932 | Mexico | Baja California | San Martin Island, Lower California | — |
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| Suaeda taxifolia (Standl.) Standl. | J. T. Howell 10716 | 19 Aug 1932 | Mexico | Baja California | San Martin Island | — |
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| Perityle emoryi Torr. | J. T. Howell 10684 | 16 Aug 1932 | Mexico | Baja California | Ensenada Mun. SW side, Cedros… | — | ||||
| Riccia nigrella DC. | J. T. Howell 164 | 17 Mar 1932 | Mexico | Baja California | Guadalupe Island. Off Lower California. | — |
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| Riccia nigrella DC. | J. T. Howell 146 | 13 Nov 1931 | Mexico | Baja California | Ensenada Mun. Ensenada. | — |
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| Riccia nigrella DC. | J. T. Howell 168 | 17 Mar 1932 | Mexico | Baja California | Guadalupe Island. NW coast of… | — |
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