Displaying 1 - 75 out of 107 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Abronia umbellata Lam. | M. F. Spencer 905 | 25 May 1918 | United States of America | California | San Diego Co. Coronado | — | 679504 |
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| Acamptopappus sphaerocephalus var. hirtellus S.F.Blake | M. F. Spencer 449 | 20 May 1917 | United States of America | California | In desert sand, Hesperia, Mohave… | — | 1824396 |
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| Achnatherum hymenoides (Roem. & Schult.) Barkworth | M. F. Spencer 829 | 27 Mar 1918 | United States of America | California | Riverside Co. Palm Springs | — | 1553233 |
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| Agoseris grandiflora (Nutt.) Greene var. grandiflora | M. F. Spencer 1157 | 31 May 1919 | United States of America | California | San Diego Co. Edge of… | — | 1876546 |
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| Agoseris grandiflora (Nutt.) Greene var. grandiflora | M. F. Spencer 1346 | 28 Jun 1919 | United States of America | California | Edge of woods | — | 1876561 |
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| Agoseris heterophylla (Nutt.) Greene var. heterophylla | M. F. Spencer 1175 | 24 May 1919 | United States of America | California | San Diego Co. Mesa Grande | — | 1876654 |
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| Agoseris retrorsa (Benth.) Greene | M. F. Spencer 494 | 31 May 1917 | United States of America | California | San Diego Co. Pine Hills | — | 1877269 |
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| Allium haematochiton S.Watson | M. F. Spencer 535 | 10 Jun 1917 | United States of America | California | San Diego Co. In the… | — | 3763399 |
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| Allium praecox Brandegee | M. F. Spencer 3 | 22 Feb 1916 | United States of America | California | Vicinity of San Diego. | — | 3772682 |
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| Allium praecox Brandegee | M. F. Spencer 885 | 31 May 1918 | United States of America | California | San Diego Co. Vicinity of… | — | 3772668 |
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| Ambrosia ambrosioides (Cav.) Payne | M. F. Spencer 910 | Nov 1918 | United States of America | California | San Diego Co. near San… | — | 1877578 |
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| Arctostaphylos drupacea J.F.Macbr. | M. F. Spencer 506 | 29 May 1917 | United States of America | California | San Diego Co. Wayside near… | — | 2516602 |
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| Arctostaphylos tomentosa (Pursh) Lindl. | M. F. Spencer 9 | 04 Sep 1916 | United States of America | California | Vicinity of San Diego. In… | — | 2517602 |
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| Astragalus aridus A.Gray | M. F. Spencer 1483 | 14 Mar 1920 | United States of America | California | Mecca. Colorado Desert | — | 01215847 |
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| Astragalus coccineus (Parry) Brandegee | M. F. Spencer 235 | 18 Mar 1917 | United States of America | California | San Diego Co. Mountain Springs,… | — | 01247690 |
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| Astragalus coccineus (Parry) Brandegee | M. F. Spencer 235 | 16 May 1920 | United States of America | California | San Diego Co. Colorado Desert | — | 01247688 |
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| Astragalus douglasii var. parishii (A.Gray) M.E.Jones | M. F. Spencer 1190 | 18 Jun 1919 | United States of America | California | San Jacinto Mt. | — | 01248739 |
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| Astragalus douglasii var. parishii (A.Gray) M.E.Jones | M. F. Spencer 945 | 25 Jul 1918 | United States of America | California | San Diego Co. Wayside, Laguna… | — | 01248738 |
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| Astragalus layneae Greene | M. F. Spencer 1418 | 14 Apr 1920 | United States of America | California | Pr. Barstow, Mohave Desert | — | 01258477 |
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| Astragalus lentiginosus var. coachellae Barneby | M. F. Spencer 1501 | 11 Mar 1920 | United States of America | California | At White Water, Colorado Desert | — | 01259663 |
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| Astragalus lentiginosus var. coachellae Barneby | M. F. Spencer 743 | 04 Apr 1918 | United States of America | California | Riverside Co. Palm Springs | — | 01259674 |
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| Astragalus oocarpus A.Gray | M. F. Spencer 944 | 24 Jul 1918 | United States of America | California | San Diego Co. Descanso | — | 01245983 |
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| Astragalus oocarpus A.Gray | M. F. Spencer 1279 | 09 Jun 1919 | United States of America | California | San Diego Co. Mesa Grande | — | 01245988 |
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| Astragalus oocarpus A.Gray | M. F. Spencer 1279 | 09 Jun 1919 | United States of America | California | San Diego Co. Mesa Grande | — | 01245989 |
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| Astragalus palmeri A.Gray | M. F. Spencer 272 | 04 Mar 1917 | United States of America | California | San Diego Co. Colorado Desert | — | 01246151 |
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| Astragalus trichopodus var. lonchus (M.E.Jones) Barneby | M. F. Spencer 1087 | 22 Apr 1919 | United States of America | California | Canyon near San Diego | — | 01344210 |
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| Batis maritima L. | M. F. Spencer 808 | 17 Mar 1918 - 25 May 1918 | United States of America | California | San Diego Co. In the… | — | 4268651 |
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| Calochortus | M. F. Spencer 18 | 21 Apr 1916 | United States of America | California | San Diego Co. Vicinity ofSan… | — | 1104592 |
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| Camissonia cheiranthifolia subsp. suffruticosa (S.Watson) P.H.Raven | M. F. Spencer 112 | 06 Feb 1916 - 10 Jun 1916 | United States of America | California | San Diego Co. Coronado. | — | 679607 |
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| Cannabis sativa L. | M. F. Spencer 887 | 12 Jun 1918 | United States of America | California | San Diego Co. San Diego | — | 1795844 |
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| Carex fracta Mack. | M. F. Spencer 1198 | 19 Jun 1919 | United States of America | California | Edge of woods, Idyllwild. San… | — | 2276881 |
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| Carex triquetra Boott | M. F. Spencer 1141 | 17 May 1919 | United States of America | California | Above Arrowhead Hot Spring near… | — | 2308042 |
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| Carex triquetra Boott | M. F. Spencer 1365 | 08 Apr 1919 | United States of America | California | San Diego Co. Golden Hill… | — | 2308043 |
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| Chilopsis linearis subsp. arcuata (Fosberg) Henrickson | M. F. Spencer 800 | 8 Apr, 27 Apr, 1918 | United States of America | California | Fr. Palm Springs, Riverside Co.;… | — | 2584518 |
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| Chorizanthe parryi S.Watson var. parryi | M. F. Spencer 1103 | 09 May 1919 | United States of America | California | San Bernardino Co. Arrowhead Hot… | — | 468381 |
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| Cirsium californicum A.Gray | M. F. Spencer 20 | 4-11-1916 | United States of America | California | San Diego Co. | — | 2042363 |
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| Cirsium californicum A.Gray | M. F. Spencer 793 | 10 May 1918 | United States of America | California | San Diego Co. Point Loma | — | 02042332 |
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| Cirsium scariosum Nutt. | M. F. Spencer 474 | 04 Jun 1917 | United States of America | California | San Diego Co. Pine Hills. | — | 2053148 |
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| Cornus occidentalis (Torr. & A.Gray) Coville | M. F. Spencer 890 | 15 Jun 1918 | United States of America | California | San Diego Co. Cuyamaca | — | 2504999 |
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| Croton setiger Hook. | M. F. Spencer 51 | 03 Jun 1916 | United States of America | California | San Diego Co. In sandy… | — | 3973844 |
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| Ephedra aspera Engelm. ex S.Watson | M. F. Spencer 206 | 26 Mar 1917 | United States of America | California | San Diego Co. Mountain Springs | — | 70190 |
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| Erigeron foliosus var. covillei (Greene) Compton | M. F. Spencer 400 | 17 May 1917 | United States of America | California | San Bernardino Co. Mohave Desert;… | — | 2089299 |
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| Erigeron foliosus var. foliosus | M. F. Spencer 1269 | 25 Jun 1919 | United States of America | California | Riverside Co. San Jacinto Mountain;… | — | 2089314 |
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| Erigeron foliosus var. stenophyllus (Nutt.) A.Gray | M. F. Spencer 1201 | 19 Jun 1919 | United States of America | California | Riverside Co. San Jacinto Mts.;… | — | 2089394 |
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| Erigeron foliosus var. stenophyllus (Nutt.) A.Gray | M. F. Spencer 52 | 28 May 1916 | United States of America | California | San Diego Co. vicinity of… | — | 2089398 |
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| Erigeron foliosus var. stenophyllus (Nutt.) A.Gray | M. F. Spencer 932 | 25 Jul 1918 | United States of America | California | San Diego Co. Laguna Mt.;… | — | 2089403 |
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| Erigeron foliosus var. stenophyllus (Nutt.) A.Gray | M. F. Spencer 929 | 25 Jul 1918 | United States of America | California | San Diego Co. Laguna Mts.;… | — | 2089404 |
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| Erigeron spinosus Benth. | M. F. Spencer 963 | 28 Jul 1918 | United States of America | California | San Diego Co. near Mexican… | — | 2095979 |
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| Euphorbia albomarginata Torr. & A.Gray | M. F. Spencer 552 | 27 Apr 1917 | United States of America | California | Mohave Desert | — | 3996154 |
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| Euphorbia melanadenia Torr. | M. F. Spencer 810 | 04 May 1918 | United States of America | California | San Diego Co. In desert… | — | 4010084 |
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| Juncus effusus subsp. austrocalifornicus Lint | M. F. Spencer 1187 | 06 Jun 1919 | United States of America | California | San Diego Co. Mesa Grande | — | 2382859 |
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| Juncus macrophyllus Coville | M. F. Spencer 1283 | 02 Jul 1919 | United States of America | California | Near brook, Idylwild. San Jacinto… | — | 2395575 |
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| Juncus xiphioides E.Mey. | M. F. Spencer 81 | 11 Jul 1916 | United States of America | California | San Diego Co. Margins of… | — | 2403555 |
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| Keckiella ternata (Torr. ex A.Gray) Straw subsp. ternata | M. F. Spencer 282 | 01 Aug 1925 | United States of America | California | Idyllwild, San Jacinto Mountains | — | 790447 |
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| Krameria parvifolia var. imparata J.F.Macbr. | M. F. Spencer 763 | 04 May 1918 | United States of America | California | San Diego Co. Mountain Springs | isotype | 429038 |
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| Lilium parryi S.Watson | M. F. Spencer 1235 | 3 Jul 1919 | United States of America | California | Riverside Co. Margin of brooks.… | — | 3542457 |
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| Lupinus | M. F. Spencer 873 | 16 Apr 1918 | United States of America | California | San Bernardino Co. West side… | — | 2614345 |
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| Lupinus affinis J.Agardh | M. F. Spencer 1056 | 26 Feb 1919 | United States of America | California | San Diego Co. Encanto. | — | 2586617 |
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| Lupinus albifrons Benth. | M. F. Spencer 1195 | 19 Jun 1919 | United States of America | California | Riverside Co. In open woods.… | — | 2586682 |
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| Lupinus albifrons Benth. | M. F. Spencer 380 | 24 Apr 1917 | United States of America | California | San Bernardino Co. Near summit… | — | 2586683 |
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| Lupinus chamissonis Eschsch. | M. F. Spencer 751 | 05 May 1918 | United States of America | California | San Diego Co. Field near… | — | 2588775 |
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| Lupinus concinnus var. agardhianus (A.Heller) C.P.Sm. | M. F. Spencer 393 | 12 May 1917 | United States of America | California | San Bernardino Co. At summit… | — | 2588899 |
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| Lupinus concinnus var. concinnus | M. F. Spencer 414 | 21 Apr 1917 | United States of America | California | Hesperia. | — | 2588844 |
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| Lupinus densiflorus var. austrocollium C.P.Sm. | M. F. Spencer 1092 | 03 May 1919 | United States of America | California | San Diego Co. Hills E… | — | 2597779 |
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| Lupinus densiflorus var. densiflorus | M. F. Spencer 96 | 19 Apr 1916 | United States of America | California | Vicinity of San Diego. In… | — | 2597682 |
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| Lupinus latifolius Lindl. ex J.Agardh | M. F. Spencer 97 | 30 May 1916 | United States of America | California | San Diego Co. Granite. In… | — | 2598435 |
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| Lupinus longifolius (S.Watson) Abrams | M. F. Spencer 1177 | 24 May 1919 | United States of America | California | San Diego Co. Mesa Grande. | — | 2599311 |
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| Lupinus longifolius (S.Watson) Abrams | M. F. Spencer 229 | 18 Mar 1917 | United States of America | California | San Diego Co. In desert… | — | 2599315 |
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| Lupinus micranthus var. micranthus | M. F. Spencer 98 | 3/23/1916; 4/25/1916 | United States of America | California | Vicinity of San Diego. | — | 2599464 |
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| Lupinus microcarpus Sims | M. F. Spencer 870 | 05 Jun 1918 | United States of America | California | San Diego Co. Fields near… | — | 2599611 |
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| Lupinus odoratus var. odoratus | M. F. Spencer 367 | 09 May 1917 | United States of America | California | Near Victorville, Mohave Desert. | — | 2600077 |
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| Lupinus sitgreavesii S.Watson | M. F. Spencer 1281 | 06 Jul 1919 | United States of America | California | San Jacinto Mts. | — | 2601813 |
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| Lupinus truncatus var. truncatus | M. F. Spencer 99 | 4/1/1916; 4/20/1916 | United States of America | California | San Diego Co. San Diego. | — | 2602424 |
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| Panicum urvilleanum Kunth | M. F. Spencer 1311 | 17 Jun 1919 | United States of America | California | Riverside Co. San Jacinto | — | 1761250 |
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| Penstemon clevelandii A.Gray | M. F. Spencer 273 | 28 Mar 1917 | United States of America | California | — | 02211470 |
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