Displaying 76 - 150 out of 219 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Lythrum californicum Torr. & A.Gray | D. Douglas s.n. | — | United States of America | California | lectotype |
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| Eriogonum fasciculatum Benth. | D. Douglas s.n. | — | United States of America | California | probable syntype |
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| Delphinium nudicaule Torr. & A.Gray | D. Douglas s.n. | — | United States of America | California | type |
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| Suaeda nigra (Raf.) J.F.Macbr. | D. Douglas s.n. | — | United States of America | California | — |
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| Eriogonum decumbens Douglas ex Benth. | D. Douglas s.n. | — | United States of America | California | isotype |
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| Ranunculus hebecarpus Hook. & Arn. | D. Douglas s.n. | — | United States of America | California | isotype |
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| Eriogonum angulosum Benth. | D. Douglas s.n. | — | United States of America | California | isotype |
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| Pogogyne douglasii Benth. | D. Douglas s.n. | — | United States of America | California | isotype |
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| Orthotrichum douglasii Duby | D. Douglas s.n. | 1830 | — | — | Columbia River | type |
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| Orthotrichum douglasii Duby | D. Douglas s.n. | 1830 | — | — | Columbia River | type |
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| Penstemon pruinosus Douglas ex Lindl. | D. Douglas s.n. | 1826 | United States of America | — | At the junction of Oakanagan… | photo of type | ||||
| Vilfa depauperata Torr. | D. Douglas 241 | s.d. | Canada | — | Barren, sandy parts of the… | holotype |
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| Phacelia covillei S.Watson | D. Douglas s.n. | 12 May 1889 | United States of America | — | Larkspur Island, Potomac River | isotype |
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| Hosackia platycarpa Nutt. | D. Douglas s.n. | — | United States of America | Oregon | Mountain woods | type |
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| Kindbergia oregana (Sull.) Ochyra | D. Douglas | — | Canada | — | N. W. America | — | ||||
| Lupinus leptophyllus Benth. | D. Douglas s.n. | 1833 | United States of America | California | "Nova California" | possible type |
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| Penstemon venustus Douglas ex Lindl. | D. Douglas s.n. | s.d. | United States of America | — | Near the Blue Mountains | — |
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| Arabis rhomboidea var. purpurea Torr. | D. Douglas s.n. | s.d. | Canada | — | holotype |
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| Dicranum scoparium Hedw. | D. Douglas | — | Canada | — | N. W. Coast America | — | ||||
| Lepidium latipes Hook. | D. Douglas s.n. | s.d. | United States of America | California | Douglas? | isotype |
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| Lepidium latipes Hook. | D. Douglas s.n. | s.d. | United States of America | California | Douglas? | isotype |
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| Dicranoweisia cirrata (Hedw.) Lindb. | D. Douglas | — | Canada | — | N W America | — | ||||
| Dendroalsia abietina (Hook.) E.Britton | D. Douglas | — | Canada | — | Colombia | — | ||||
| Calamagrostis purpurascens R.Br. | D. Douglas 240 | — | Canada | — | Alpinaboine | possible type |
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| Barbula rubiginosa Mitt. | D. Douglas | — | Canada | — | Columbia, N. W. America | type |
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| Venegasia carpesioides DC. | D. Douglas 54 | 1833 | United States of America | — | California [or Mexico-Baja California?] | isotype |
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| Lewinskya striata (Hedw.) F.Lara, Garilleti & Goffinet | D. Douglas | — | Canada | — | Columbia | — | ||||
| Douglasia nivalis Lindl. | D. Douglas s.n. | s.d. | United States of America | — | Bor. Amer. | type |
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| Penstemon attenuatus Douglas ex Lindl. var. attenuatus | D. Douglas s.n. | s.d. | United States of America | Idaho | Lewis and Clark River | — |
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| Dendroalsia abietina (Hook.) E.Britton | D. Douglas | — | Canada | — | N. W. America | — | ||||
| Calamagrostis purpurascens R.Br. | D. Douglas 239 | — | Canada | — | Plains of the Alpinaboine | possible type |
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| Penstemon pruinosus Douglas ex Lindl. | D. Douglas s.n. | s.d. | United States of America | Washington | Oakanogan and Priests Rapids jnt.… | — |
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| Burrielia microglossa DC. | D. Douglas s.n. | 1833 | United States of America | California | Nov California | isotype |
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| Dicranum undulatum Schrad. ex Brid. | D. Douglas | — | United States of America | — | North West Coast America | — | ||||
| Penstemon deustus Douglas ex Lindl. var. deustus | D. Douglas s.n. | s.d. | United States of America | — | Lewis and Clarke River | — |
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| Penstemon attenuatus Douglas ex Lindl. var. attenuatus | D. Douglas s.n. | 1830 | United States of America | — | Columbia River, North West America | — |
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| Eriogonum ovalifolium Benth. | D. Douglas s.n. | — | United States of America | California | Blue Mountain | probable isotype |
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| Eriogonum douglasii Benth. | D. Douglas s.n. | — | United States of America | California | Blue Mountain | probable isotype |
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| Penstemon speciosus Douglas | D. Douglas s.n. | s.d. | United States of America | — | Spokan [spelling ?] | possible type |
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| Sphagnum mendocinum Sull. | D. Douglas | — | Canada | — | N.W. America | — | ||||
| Paraleucobryum enerve (Thed.) Loeske | D. Douglas W.402 | — | United States of America | — | N. West Coast America | — | ||||
| Hymenopappus douglasii Hook.f. | D. Douglas s.n. | s.d. | United States of America | — | America Boreali-occidentalis: Columbia River | isotype |
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| Artemisia discolor Douglas | D. Douglas s.n. | s.d. | United States of America | — | Near [Shokan] and the Kettle… | type fragment |
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| Bromus carinatus var. hookerianus (Thurb.) Shear | D. Douglas s.n. | s.d. | — | — | [North America:] Plains of the… | — |
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| Spiraea opulifolia var. mollis Torr. & A.Gray | D. Douglas s.n. | s.d. | United States of America | — | Columbia [Grand Rapids of the… | holotype |
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| Polygonum coarctatum var. majus Meisn. | D. Douglas s.n. | 1830 | United States of America | — | Columbia River | syntype |
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| Philadelphus gordonianus Lindl. | D. Douglas s.n. | — | United States of America | — | Columbia River | isotype |
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| Barbula vinealis Brid. | D. Douglas | — | Canada | — | Columbia, NW America | — | ||||
| Dicranum scoparium Hedw. | D. Douglas | — | Canada | — | Columbia | — | ||||
| Barbula rubiginosa Mitt. | D. Douglas | — | Canada | — | N. W. America | possible syntype |
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| Eriogonum vimineum Douglas ex Benth. | D. Douglas s.n. | — | United States of America | — | North West America | isotype |
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| Dicranum scoparium Hedw. | D. Douglas | — | Canada | — | N. W. America | — | ||||
| Dicranum scoparium Hedw. | D. Douglas | — | Canada | — | N. W. America | — | ||||
| Dicranum scoparium Hedw. | D. Douglas | — | Canada | — | N. W. America | — | ||||
| Festuca occidentalis Hook. | D. Douglas 228& 224 | s.d. | United States of America | — | Plains of the Columbia, near… | isolectotype |
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| Sisymbrium canescens var. californicum Torr. & A.Gray | D. Douglas s.n. | s.d. | United States of America | California | holotype |
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| Thelia hirtella (Hedw.) Sull. | D. Douglas | — | Canada | — | Near "N.Y." | — | ||||
| Platystemon californicus Benth. | D. Douglas s.n. | s.d. | United States of America | California | possible isotype |
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| Marchantia trichocephala Hook. | D. Douglas s.n. | s.d. | United States of America | Hawaii | Sandwich Islands | isotype |
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| Marchantia trichocephala Hook. | D. Douglas 71 | s.d. | United States of America | Hawaii | Sandwich Islands | isotype |
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| Hygrohypnum luridum (Hedw.) Jenn. | D. Douglas 289 | s.d. | — | — | [on sheet with specimens from… | — | ||||
| Hypnum lentum Mitt. | D. Douglas s.n. | s.d. | — | — | N.W. Coast | type |
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| Thuidium crenulatum Mitt. | D. Douglas 51 | s.d. | United States of America | Hawaii | Sandwich Islands | isotype |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | possible type |
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| Hypnum spiculiferum Mitt. | D. Douglas s.n. | s.d. | — | — | NW America | possible type |
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| Penstemon ovatus Douglas | D. Douglas s.n. | [1820s] | United States of America | Washington | [From protologue: Douglas growing plentifully… | Image of Type | ||||
| Penstemon ovatus Douglas | D. Douglas s.n. | [1820s] | United States of America | Washington | [From protologue: Douglas growing plentifully… | Image of Type | ||||
| Penstemon richardsonii Douglas ex Lindl. | D. Douglas s.n. | 1825 | United States of America | Washington | [From protologue: Rocks of the… | photo of type | ||||
| Penstemon diffusus Douglas | D. Douglas s.n. | s.d. | United States of America | — | [From protologue: North America "Native… | photo of type |