Displaying 1 - 75 out of 200 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Abutilon texense Torr. & A.Gray | J. H. Oyster s.n. | 28 May 1883 | United States of America | Texas | Eastland Co. Vicinity of Eastland | — | 3855450 |
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| Amaranthus rudis J.D.Sauer | J. H. Oyster s.n. | 24 Jul 1885 | United States of America | Kansas | Miami Co. | — | 3364727 |
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| Ambrosia bidentata Michx. | J. H. Oyster 4078 | 15 Sep 1885 | United States of America | Kansas | Miami Co. | — | 1878040 |
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| Amorpha canescens Pursh | J. H. Oyster 1577 | Jun 1883 | United States of America | Kansas | Miami Co. | — | 2558902 |
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| Androsace occidentalis Pursh | J. H. Oyster 17945221 | Sep 1885 | United States of America | Kansas | Miami Co. | — | 3592103 |
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| Anemone caroliniana Walter | J. H. Oyster 1440 | 10 Apr 1883 | United States of America | Kansas | Miami Co. | — | 2738755 |
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| Aphanostephus arkansanus A.Gray | J. H. Oyster s.n. | 25 May 1883 | United States of America | Texas | Tarrant Co. Vicinity of Ft.… | — | 1896088 |
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| Arabis dentata Torr. & A.Gray | J. H. Oyster s.n. | 20 May 1883 | United States of America | Kansas | Miami Co. | — | 3153523 |
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| Arabis dentata Torr. & A.Gray | J. H. Oyster 154316 | 20 May 1883 | United States of America | Kansas | Miami Co. | — | 3153525 |
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| Argythamnia mercurialina (Nutt.) Müll.Arg. | J. H. Oyster s.n. | 21 May 1883 | United States of America | Texas | Grayson Co. Vicinity of Denison | — | 3932455 |
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| Argythamnia mercurialina (Nutt.) Müll.Arg. | J. H. Oyster s.n. | 21 Jun 1884 | United States of America | Kansas | Wilson Co. | — | 3932464 |
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| Artemisia dracunculus L. | J. H. Oyster s.n. | — | United States of America | Kansas | Miami Co. | — | 4028674 |
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| Artemisia ludoviciana Nutt. subsp. ludoviciana | J. H. Oyster s.n. | — | United States of America | Kansas | Miami Co. | — | 1895581 |
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| Artemisia ludoviciana Nutt. subsp. ludoviciana | J. H. Oyster s.n. | s.d. | United States of America | Kansas | Miami Co. Paola | — | 1907846 |
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| Asclepias meadii Torr. ex A.Gray | J. H. Oyster 5347 | Jun 1885 | United States of America | Kansas | Miami Co. | — | 37943 |
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| Asclepias oenotheroides Schltdl. & Cham. | J. H. Oyster s.n. | 21 May 1883 | United States of America | Texas | Grayson Co. Vicinity of Denison | — | 3517676 |
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| Asclepias pumila (A.Gray) Vail | J. H. Oyster 5369 | 13 Aug 1885 | United States of America | Kansas | Osborne Co. | — | 3517990 |
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| Asclepias stenophylla A.Gray | J. H. Oyster s.n. | 30 Jul 1883 | United States of America | Kansas | Miami Co. | — | 3528715 |
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| Asclepias viridis Walter | J. H. Oyster 5324 | May 1885 | United States of America | Kansas | Miami Co. | — | 3536059 |
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| Aster trigonicus E.S.Burgess | J. H. Oyster 3642 | Aug 1889 | United States of America | Kansas | Miami Co. | holotype | 162091 |
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| Astragalus crassicarpus Nutt. var. crassicarpus | J. H. Oyster s.n. | May 1884 | United States of America | Kansas | Miami Co. | — | 01248013 |
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| Bouteloua curtipendula (Michx.) Torr. | J. H. Oyster s.n. | 10 Aug 1883 | United States of America | Kansas | Miami Co. Paola | — | 1642622 |
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| Buchnera americana L. | J. H. Oyster 6281 | Jun 1885 | United States of America | Oklahoma | Indian Territory | — | 3254539 |
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| Callirhoe alcaeoides (Michx.) A.Gray | J. H. Oyster s.n. | 02 Jun 1884 | United States of America | Kansas | Miami Co. | — | 3874261 |
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| Callirhoe alcaeoides (Michx.) A.Gray | J. H. Oyster 984 | 02 Jun 1883 | United States of America | Kansas | Miami Co. | — | 3874264 |
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| Callirhoe alcaeoides (Michx.) A.Gray | J. H. Oyster s.n. | Jun 1885 | United States of America | Kansas | Miami Co. | — | 3874267 |
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| Callirhoe involucrata (Torr. & A.Gray) A.Gray var. involucrata | J. H. Oyster s.n. | 01 Jul 1883 | United States of America | Kansas | Butler Co. | — | 3874360 |
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| Callirhoe involucrata (Torr. & A.Gray) A.Gray var. involucrata | J. H. Oyster 987 | Jun 1884 | United States of America | Kansas | Butler Co. | — | 3874373 |
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| Callirhoe pedata (Nutt. ex Hook.) A.Gray | J. H. Oyster 1050 | Jun 1883 | United States of America | Texas | — | 3874712 |
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| Calylophus serrulatus (Nutt.) P.H.Raven | J. H. Oyster 6381 | — | United States of America | Kansas | Paoli | — | 3169005 |
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| Ceanothus ovatus Desf. | J. H. Oyster 1278 | 26 May 1886 | United States of America | Kansas | Miami Co. | — | 3753344 |
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| Chaerophyllum texanum J.M.Coult. & Rose | J. H. Oyster 6489 | — | United States of America | Kansas | Paoli | — | 3454499 |
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| Chamaesaracha coniodes (Moric. ex Dunal) Britton | J. H. Oyster s.n. | Jun 1883 | United States of America | Texas | — | 1423060 |
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| Chenopodium standleyanum Aellen | J. H. Oyster s.n. | Aug 1885 | United States of America | Kansas | Miami Co. | — | 3347058 |
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| Cirsium altissimum (L.) Spreng. | J. H. Oyster 4786 | Aug. 1885 | United States of America | Kansas | Miami Co. | — | 2041968 |
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| Clematis pitcheri Torr. & A.Gray | J. H. Oyster s.n. | Jun 1884 | United States of America | Kansas | Miami Co. | — | 2746161 |
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| Collinsia verna Nutt. | J. H. Oyster 6101 | 14 May 1884 | United States of America | Kansas | Miami Co. | — | 3275143 |
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| Coreopsis cardaminefolia | J. H. Oyster s.n. | 21 May 1883 | United States of America | Texas | Grayson Co. Vicinity of Denison | — | 2055355 |
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| Coreopsis palmata Nutt. | J. H. Oyster s.n. | Jul 1885 | United States of America | Kansas | Miami Co. | — | 2066347 |
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| Coreopsis tinctoria Nutt. | J. H. Oyster 4269 | 06 Sep 1884 | United States of America | Kansas | Harper Co. | — | 2066791 |
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| Corydalis aurea var. micrantha Engelm. ex A.Gray | J. H. Oyster 274a125var. | 10 May 1885 | United States of America | Kansas | Miami Co. | — | 3703739 |
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| Corydalis micrantha (Engelm. ex A.Gray) A.Gray subsp. micrantha | J. H. Oyster 274a125var. | 10 May 1885 | United States of America | Kansas | Miami Co. | — | 3704350 |
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| Croptilon divaricatum (Nutt.) Raf. | J. H. Oyster 3572 | 06 Sep 1885 | United States of America | Kansas | Harper Co. | — | 2069717 |
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| Cypripedium candidum Muhl. ex Willd. | J. H. Oyster 2821 | 1882 | — | — | — | 4043805 |
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| Dalea aurea Nutt. ex Pursh | J. H. Oyster 1588 | Sep 1885 | United States of America | Kansas | Northwest Kansas | — | 01073449 |
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| Dalea candida var. oligophylla (Torr.) Shinners | J. H. Oyster s.n. | 29 Aug 1884 | United States of America | Kansas | Paola. Lawrence. | — | 01074225 |
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| Dalea enneandra Nutt. | J. H. Oyster s.n. | Aug 1885 | United States of America | Kansas | NW Kansas | — | 01259283 |
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| Dalea enneandra Nutt. | J. H. Oyster | Aug 1885 | United States of America | Kansas | NW Kansas | — | 01259336 |
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| Dalea enneandra Nutt. | J. H. Oyster | 28 May 1883 | United States of America | Texas | Vicinity of Eastland | — | 01259388 |
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| Dalea enneandra Nutt. | J. H. Oyster | Aug 1885 | United States of America | Kansas | NW Kansas | — | 01259389 |
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| Dalea enneandra Nutt. | J. H. Oyster s.n. | 28 May 1883 | United States of America | Texas | Vicinity of Eastland | — | 01259405 |
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| Dalea lanata Spreng. var. lanata | J. H. Oyster 1765 | 10 Aug 1887 | United States of America | Kansas | Comanche Co. | — | 01269923 |
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| Delphinium tricorne Michx. | J. H. Oyster s.n. | Jun 1884 | United States of America | Kansas | — | 2752215 |
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| Desmodium acuminatum (Michx.) DC. | J. H. Oyster 1900 | Jun 1884 | United States of America | Kansas | Miami Co. | — | 2563902 |
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| Desmodium canadense (L.) DC. | J. H. Oyster s.n. | 1886 | United States of America | Kansas | Miami Co. | — | 2564310 |
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| Desmodium canescens (L.) DC. | J. H. Oyster s.n. | Jul 1886 | United States of America | Kansas | Miami Co. | — | 2564652 |
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| Desmodium illinoense A.Gray | J. H. Oyster s.n. | 1888 | United States of America | Kansas | Miami Co. | — | 2566791 |
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| Desmodium paniculatum (L.) DC. | J. H. Oyster 1818 | 03 Sep 1888 | United States of America | Kansas | Miami Co. | — | 2567581 |
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| Desmodium sessilifolium Torr. & A.Gray | J. H. Oyster s.n. | Jul 1887 | United States of America | Kansas | Miami Co. | — | 2568420 |
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| Desmodium sessilifolium Torr. & A.Gray | J. H. Oyster 1726 | Summer 1883 | United States of America | Kansas | Miami Co. | — | 2568457 |
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| Dimorphocarpa wislizenii (Engelm.) Rollins | J. H. Oyster s.n. | 30 May 1883 | United States of America | Texas | — | 3183585 |
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| Draba cuneifolia Nutt. var. cuneifolia | J. H. Oyster 180429 | 19 Apr 1883 | United States of America | Kansas | Miami Co. | — | 3200949 |
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| Draba cuneifolia Nutt. var. cuneifolia | J. H. Oyster 429 | 18 Apr 1885 | United States of America | Kansas | Miami Co. | — | 3200958 |
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| Dyschoriste linearis (Torr. & A.Gray) Kuntze | J. H. Oyster 4799 | 09 Jun 1883 | United States of America | Texas | — | 3601798 |
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| Dyssodia papposa (Vent.) Hitchc. | J. H. Oyster 4571 | Aug 1884 | United States of America | Kansas | Miami Co. | — | 2070542 |
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| Erigeron pumilus Nutt. subsp. pumilus | J. H. Oyster 4140 | 29 May 1888 | United States of America | Kansas | Greeley Co. | — | 2094629 |
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| Eryngium leavenworthii Torr. & A.Gray | J. H. Oyster s.n. | 03 Sep 1884 | United States of America | Kansas | Allen Co. | — | 3464704 |
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| Eryngium leavenworthii Torr. & A.Gray | J. H. Oyster s.n. | 03 Sep 1884 | United States of America | Kansas | Allen Co. | — | 3464719 |
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| Eryngium leavenworthii Torr. & A.Gray | J. H. Oyster s.n. | 03 Sep 1884 | United States of America | Kansas | Allen Co. | — | 3736727 |
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| Eryngium yuccaefolium Michx. | J. H. Oyster s.n. | Aug 1883 | United States of America | Kansas | Miami Co. | — | 3464972 |
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| Euphorbia cyathophora Murray | J. H. Oyster s.n. | 25 Aug 1885 | United States of America | Kansas | Miami Co. | — | 4001902 |
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| Euphorbia hexagona Nutt. ex Spreng. | J. H. Oyster 7328 | Aug 1885 | United States of America | Kansas | Lawrence. | — | 4003528 |
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| Euphorbia humistrata Engelm. | J. H. Oyster 7362 | 19 Sep 1885 | United States of America | Kansas | Miami Co. | — | 4003653 |
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| Euphorbia maculata L. | J. H. Oyster s.n. | 07 Sep 1886 | United States of America | Kansas | Miami Co. | — | 4009519 |
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| Euphorbia missurica Raf. | J. H. Oyster 7306 | Aug 1885 | United States of America | Kansas | Miami Co. | — | 4010353 |
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