Displaying 1 - 75 out of 107 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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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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| Allium praecox Brandegee | M. F. Spencer 3 | 22 Feb 1916 | United States of America | California | Vicinity of San Diego. | — | 3772682 |
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| Solanum umbelliferum Eschsch. | M. F. Spencer 148 | 3, 5, 1916 | United States of America | California | Vicinity of San Diego | — | 00821110 |
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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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| 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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| Calochortus | M. F. Spencer 18 | 21 Apr 1916 | United States of America | California | San Diego Co. Vicinity ofSan… | — | 1104592 |
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| Rumex hymenosepalus Torr. | M. F. Spencer 141 | 27 Apr 1916 | United States of America | California | San Diego Co. Vicinity of… | — | 2405992 |
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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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| 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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| 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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| 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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| Solidago californica Nutt. | M. F. Spencer 300 | 24 Aug 1916 | United States of America | California | San Diego Co. Pine Hills | — | 2337925 |
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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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| Rhus integrifolia (Nutt.) Benth. & Hook.f. ex W.H.Brewer & S.Watson | M. F. Spencer 280 | 31 Jan 1917 | United States of America | California | San Diego Co. In canyons… | — | 2555482 |
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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 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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| 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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| Prunus fremontii S.Watson | M. F. Spencer 236 | Fl. 18 Mar. 1917. Fr. 1 Apr. | United States of America | California | San Diego Co. Colorado Desert. | — | 2849440 |
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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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| Penstemon clevelandii A.Gray | M. F. Spencer 273 | 28 Mar 1917 | United States of America | California | — | 02211470 |
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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 albifrons Benth. | M. F. Spencer 380 | 24 Apr 1917 | United States of America | California | San Bernardino Co. Near summit… | — | 2586683 |
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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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| 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 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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| Prunus fasciculata (Torr.) A.Gray | M. F. Spencer 366 | 12 May 1917 | United States of America | California | San Bernardino Co. Summit, El… | — | 2849387 |
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| Psorothamnus arborescens var. minutifolius (Parish) Barneby | M. F. Spencer 365 | 16 May 1917 | United States of America | California | Near Victorville, Mohave Desert | — | 01343556 |
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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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| 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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| 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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| 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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| 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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| 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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| 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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| Psorothamnus emoryi (A.Gray) Rydb. var. emoryi | M. F. Spencer 757 | 27 Mar 1918 | United States of America | California | Riverside Co. Palm Springs | — | 01343607 |
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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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| Prunus fremontii S.Watson | M. F. Spencer 759 | 27 Mar 1918 | United States of America | California | Riverside Co. In desert sand,… | — | 2849439 |
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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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| Salix exigua subsp. melanopsis (Nutt.) Cronquist | M. F. Spencer 812 | 07 Apr 1918 | United States of America | California | Riverside Co. In desert sand,… | — | 2415406 |
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| Stillingia linearifolia S.Watson | M. F. Spencer 811 | 07 Apr 1918 | United States of America | California | In desert sand. Palm Springs | — | 4096834 |
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| Salix nigra var. venulosa (Andersson) Bebb | M. F. Spencer 813 | 08 Apr 1918 | United States of America | California | Riverside Co. Palm Springs | — | 2061746 |
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| Psorothamnus schottii (Torr.) Barneby | M. F. Spencer 758 | 11 Apr 1918 | United States of America | California | Riverside Co. Chino Canyon, Palm… | — | 01343766 |
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| Salix laevigata Bebb | M. F. Spencer 814 | 16 Apr 1918 | United States of America | California | San Bernardino Co. Canyon west… | — | 2452176 |
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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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| Prunus fasciculata (Torr.) A.Gray | M. F. Spencer 799 | 17 Apr 1918 | United States of America | California | San Bernardino Co. In dry… | — | 2849388 |
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| Psorothamnus schottii (Torr.) Barneby | M. F. Spencer 752 | 28 Apr 1918 | United States of America | California | San Diego Co. Colorado Desert,… | — | 01343765 |
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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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| 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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| 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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| 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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| Abronia umbellata Lam. | M. F. Spencer 905 | 25 May 1918 | United States of America | California | San Diego Co. Coronado | — | 679504 |
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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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| 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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| 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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| 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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| Salix parishiana Rowlee | M. F. Spencer 911 | 13 Jul 1918 | United States of America | California | Sweetwater Valley. | — | 02062050 |
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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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| Penstemon labrosus (A.Gray) Hook.f. | M. F. Spencer 961 | 25 Jul 1918 | United States of America | California | San Diego Co. Laguna Mountains | — | 604263 |
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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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| 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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| Solanum rostratum Dunal | M. F. Spencer 969 | 31 Jul 1918 | United States of America | California | San Diego Co. San Diego | — | 00820803 |
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| Solanum elaeagnifolium Cav. | M. F. Spencer 962 | 03 Aug 1918 | United States of America | California | San Diego. | — | 00826937 |
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| Solidago californica Nutt. | M. F. Spencer 955 | 17 Aug 1918 | United States of America | California | San Diego Co. Palomar Mt. | — | 2337967 |
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| Solidago californica Nutt. | M. F. Spencer 1039 | 06 Oct 1918 | United States of America | California | San Diego Co. Alpine | — | 2337927 |
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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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| 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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| Salix lasiolepis Benth. | M. F. Spencer 1061 | 09 Mar 1919 | United States of America | California | San Diego Co. Wayside near… | — | 2452997 |
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| Salix parishiana Rowlee | M. F. Spencer 1058 | 09 Mar 1919 | United States of America | California | San Diego Co. Wayside near… | — | 2062051 |
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| Solanum xanti var. spencerae J.F.Macbr. | M. F. Spencer 1069 | 28 Mar 1919 | United States of America | California | Torrey Pines near San Diego | type | 138960 |
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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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| 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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| Rumex salicifolius var. denticulatus Torr. | M. F. Spencer 1091 | 22 Apr 1919 | United States of America | California | San Diego Co. Canyon near… | — | 2409399 |
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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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