Apocynaceae GH: 02178019 Apocynum cannabinum Linnaeus USA: Oregon Railroad tracks south of Salem J. W. Thompson 5098 1928-7-19
Aristolochiaceae GH: 01682339 Asarum caudatum Lindley USA: Oregon [data not captured] J. W. Thompson 4100 1928-4-15
GH: 01682403 Asarum marmoratum Piper USA: Oregon [data not captured] J. W. Thompson 4660 1928-6-7
Asteraceae GH: 02141917 Apargidium boreale (Bongard) Torrey & A. Gray USA: Oregon [data not captured] J. W. Thompson 4931 1928-6-23
GH: 02206594 Erigeron concinnus Torrey USA: Oregon [data not captured] J. W. Thompson 4783 1928-6-13
GH: 02206713 Erigeron coulteri Porter USA: Oregon [data not captured] J. W. Thompson 4857 1928-6-16
GH: 02348266 Erigeron filifolius Nuttall USA: Oregon [data not captured] J. W. Thompson 4782 1928-6-13
GH: 02348265 Erigeron filifolius Nuttall USA: Oregon [data not captured] J. W. Thompson 4315 1928-5-27
GH: 02348577 Erigeron foliosus hartwegii (Greene) Jepson USA: California [data not captured] J. W. Thompson 4532 1928-6-5
GH: 02353003 Erigeron glacialis (Nuttall) A. Nelson USA: Oregon [data not captured] J. W. Thompson 4857 1928-6-16
GH: 02353936 Erigeron lonchophyllus Hooker USA: Oregon [data not captured] J. W. Thompson 5100 1928-7-19
GH: 02352662 Erigeron philadelphicus Linnaeus USA: Oregon [data not captured] J. W. Thompson 4236 1928-5-19
GH: 02351513 Erigeron speciosus de Candolle USA: Oregon [data not captured] J. W. Thompson 4898 1928-6-20
GH: 01831733 Hieracium gracile Hooker USA: Oregon [data not captured] J. W. Thompson 5082 1928-7-22
GH: 00427654 Packera bolanderi (A. Gray) W. A. Weber & A. Löve USA: California Crescent City: Douglas Park, 9 miles up Smit... J. W. Thompson 4491 1928-6-5
GH: 00404917 Packera bolanderi (A. Gray) W. A. Weber & A. Löve USA: California Douglas Park, 9 miles up Smith River from Cr... J. W. Thompson 4491 1928-6-5
Brassicaceae GH: 00974547 Athysanus pusillus (Hooker) Greene USA: Oregon [data not captured] J. W. Thompson 4037 1928-4-7
GH: 01098828 Cardamine californica integrifolia (Nuttall) Rollins USA: Oregon [data not captured] J. W. Thompson 4098 1928-4-15
GH: 00983799 Cardamine nuttallii Greene USA: Oregon [data not captured] J. W. Thompson 4049 1928-4-7
GH: 01561377 Draba verna Linnaeus USA: Oregon [data not captured] J. W. Thompson 4033 1928-4-7
GH: 01561378 Draba verna Linnaeus USA: Oregon [data not captured] J. W. Thompson 4929 1928-6-23
GH: 01538062 Erysimum capitatum (Douglas ex Hooker) Greene USA: Oregon [data not captured] J. W. Thompson 4151 1928-5-6
Convolvulaceae GH: 02055101 Calystegia atriplicifolia H. Hallier USA: California Douglas Park J. W. Thompson 4515 1928-6-5
Cupressaceae GH: 02106299 Juniperus scopulorum Sargent USA: Oregon [data not captured] J. W. Thompson 4818 1928-6-15
Dicranaceae FH: 00791849 Dicranum scoparium Hedwig USA: Oregon [data not captured] J. W. Thompson 4105 M 1928-4-21
Ericaceae GH: 01117420 Arctostaphylos columbiana Piper USA: Oregon Siwash Flat, 2 miles west of Mosier J. W. Thompson 4059 1928-4-7
GH: 01592231 Gaultheria shallon Pursh USA: Oregon Banks of Eagle Creek J. W. Thompson 4263 1928-5-20
GH: 01718631 Menziesia ferruginea Smith USA: Oregon Mirror Lake, Mt. Hood J. W. Thompson 4906 1928-6-23
GH: 01719089 Moneses uniflora (Linnaeus) A. Gray USA: Oregon up Catherine Creek, near Union J. W. Thompson 4857 1928-6-16
GH: 01719548 Monotropa uniflora Linnaeus USA: Oregon Salem J. W. Thompson 1928-6-27
GH: 01761907 Pyrola minor Linnaeus USA: Oregon [data not captured] J. W. Thompson 4856 1928-6-16
GH: 00362936 Pyrola picta Smith USA: California Douglas Park J. W. Thompson 4526 1928-6-5
GH: 01761972 Pyrola picta Smith USA: Oregon [data not captured] J. W. Thompson 4612 1928-6-7
GH: 01764543 Rhododendron occidentale (Torrey & A. Gray) A. Gray USA: Oregon [data not captured] J. W. Thompson 4661 1928-6-7
GH: 01764555 Rhododendron occidentale (Torrey & A. Gray) A. Gray USA: Oregon [data not captured] J. W. Thompson 4431 1928-6-3
Fabaceae GH: 02130427 Melilotus officinalis (Linnaeus) Lamarck USA: Oregon [data not captured] J. W. Thompson 4462 1928-6-4
GH: 02133656 Psoralidium lanceolatum (Pursh) Rydberg USA: Oregon [data not captured] J. W. Thompson 4877 1928-6-25
GH: 02344489 Trifolium wormskioldii Lehmann USA: Oregon [data not captured] J. W. Thompson 4454 1928-6-4
GH: 02345099 Vicia americana Muhlenberg ex Willdenow USA: Oregon [data not captured] J. W. Thompson 5078 1928-7-22
Hydrophyllaceae GH: 00093089 Hydrophyllum capitatum thompsonii (M. Peck) Constance USA: Oregon 1 mile east of Hood River, rocky hillside un... J. W. Thompson 4052 1928-4-7
GH: 00093089 Hydrophyllum thompsonii M. Peck USA: Oregon 1 mile east of Hood River, rocky hillside un... J. W. Thompson 4052 1928-4-7
Hypnaceae FH: 00842094 Hypnum subimponens Lesquereux USA: Oregon [data not captured] J. W. Thompson 4003M 1928-4-1
Iridaceae GH: 00030547 Iris thompsonii R. C. Foster USA: California Douglas Park J. W. Thompson 4510 1928-6-5
GH: 00030546 Iris thompsonii R. C. Foster USA: California Douglas Park J. W. Thompson 4510 1928-6-5
Isoetaceae GH: 00309040 Isoetes howellii Engelmann USA: Oregon The Dalles J. W. Thompson 4872 1928-6-17
Juncaceae GH: 02401883 Juncus orthophyllus Coville USA: Oregon [data not captured] J. W. Thompson 4595 1928-6-7
Malvaceae GH: 00385075 Sidalcea malviflora elegans (Greene) C. L. Hitchcock USA: California Douglas Park J. W. Thompson 4507 1928-6-5
Mniaceae FH: 00845014 Leucolepis menziesii (Hooker) Steere USA: Oregon [data not captured] J. W. Thompson 4096M 1928-4-15
Orchidaceae GH: 02029528 Calypso bulbosa occidentalis (Holzinger) Cockerell USA: Oregon St. Helens J. W. Thompson 4016 1928-4-1
GH: 01937841 Cypripedium montanum Douglas ex Lindley USA: Oregon summit of old road between Mosier and the Da... J. W. Thompson 4332 1928-5-27
GH: 01937850 Cypripedium montanum Douglas ex Lindley USA: Oregon summit of old road between Mosier and The Da... J. W. Thompson 4332 1928-5-27
AMES: 02051483 Epipactis gigantea Douglas ex Hooker USA: California Smith River at Douglas Park J. W. Thompson 4496 1928-6-5
AMES: 02050406 Platanthera unalascensis (Sprengel) Kurtz USA: Oregon 4 miles east of Bear Springs J. W. Thompson 4933 1928-6-24
Plantaginaceae GH: 01998445 Collinsia grandiflora pusilla A. Gray USA: Oregon [data not captured] J. W. Thompson 4787 1928-6-15
GH: 01998446 Collinsia grandiflora pusilla A. Gray USA: Oregon [data not captured] J. W. Thompson 4026 1928-4-7
GH: 01998820 Collinsia parviflora Lindley USA: Oregon [data not captured] J. W. Thompson 4040 1928-4-7
GH: 01998809 Collinsia parviflora Lindley USA: Oregon [data not captured] J. W. Thompson 4184 1928-5-13
GH: 01998807 Collinsia parviflora Lindley USA: Oregon [data not captured] J. W. Thompson 4927 1928-6-23
GH: 01998629 Collinsia parviflora Lindley USA: Oregon [data not captured] J. W. Thompson 4184 1928-5-13
GH: 01998934 Collinsia rattanii linearis (A. Gray) Newsom USA: Oregon [data not captured] J. W. Thompson 4637 1928-6-7
GH: 02001861 Penstemon acuminatus Douglas ex Lindley USA: Oregon [data not captured] J. W. Thompson 1928-5-5
GH: 02002344 Penstemon attenuatus Douglas ex Lindley USA: Oregon [data not captured] J. W. Thompson 4735 1928-6-14
GH: 02002598 Penstemon azureus Bentham USA: Oregon [data not captured] J. W. Thompson 4638 1928-6-7
GH: 02002594 Penstemon azureus Bentham USA: Oregon [data not captured] J. W. Thompson 4590 1928-6-7
GH: 02002756 Penstemon barrettiae A. Gray USA: Oregon [data not captured] J. W. Thompson 4203 1928-5-13
GH: 02118167 Penstemon cardwellii Howell USA: Oregon [data not captured] J. W. Thompson 4905 1928-6-22
GH: 02118163 Penstemon cardwellii Howell USA: Oregon [data not captured] J. W. Thompson 4905 1928-6-23
GH: 02118479 Penstemon confertus Douglas ex Lindley USA: Oregon [data not captured] J. W. Thompson 4727 1928-6-14
GH: 02118873 Penstemon deustus Douglas USA: Oregon [data not captured] J. W. Thompson 4722 1928-6-14
GH: 02118863 Penstemon deustus Douglas USA: Oregon [data not captured] J. W. Thompson 4811 1928-6-15
GH: 02119422 Penstemon euglaucus English USA: Oregon [data not captured] J. W. Thompson 5091 1928-7-22
GH: 02119586 Penstemon fruticosus (Pursh) Greene USA: Oregon [data not captured] J. W. Thompson 4789 1928-6-15
GH: 02119828 Penstemon glandulosus Douglas ex Lindley USA: Oregon [data not captured] J. W. Thompson 4176 1928-5-13
GH: 02122093 Penstemon rattanii A. Gray USA: California [data not captured] J. W. Thompson 4522 1928-6-5
GH: 02122115 Penstemon richardsonii Douglas ex Lindley USA: Oregon [data not captured] J. W. Thompson 4949 1928-6-24
GH: 02122237 Penstemon roezlii Regel USA: Oregon [data not captured] J. W. Thompson 4590 1928-6-7
GH: 02122229 Penstemon roezlii Regel USA: Oregon [data not captured] J. W. Thompson 1928-5-18
GH: 02122482 Penstemon serrulatus Menzies ex Smith USA: Oregon [data not captured] J. W. Thompson 4363 1928-5-27
GH: 02122647 Penstemon speciosus Douglas USA: Oregon [data not captured] J. W. Thompson 4947 1928-6-24
GH: 01801200 Penstemon venustus Douglas USA: Oregon [data not captured] J. W. Thompson 4837 1928-6-15
GH: 01801189 Penstemon venustus Douglas USA: Oregon [data not captured] J. W. Thompson 4862 1928-6-16
GH: 00091836 Synthyris missurica stellata (Pennell) Kartesz & Gandhi USA: Oregon Near Oneanta tunnell, Columbia River Gorge J. W. Thompson 4030 1928-4-7
GH: 01804597 Synthyris reniformis (Douglas) Bentham USA: Oregon [data not captured] J. W. Thompson 4000 A 1928-3-31
GH: 00091836 Synthyris stellata Pennell USA: Oregon Near Oneanta tunnell, Columbia River Gorge J. W. Thompson 4030 1928-4-7
GH: 01805082 Veronica americana Schweinitz ex Bentham USA: Oregon [data not captured] J. W. Thompson 4308 1928-5-26
GH: 01812556 Veronica wormskjoldii nutans (Bongard) Pennell USA: Oregon [data not captured] J. W. Thompson 5055 1928-7-22
Polemoniaceae GH: 01105100 Leptosiphon bicolor Nuttall USA: Oregon [data not captured] J. W. Thompson 4206 1928-5-13
Polygonaceae GH: 02043336 Eriogonum umbellatum goodmanii Reveal USA: Oregon [data not captured] J. W. Thompson 4636 1928-6-7
GH: 02360920 Polygonum majus Piper USA: Oregon [data not captured] J. W. Thompson 4747 1928-6-14
Polytrichaceae FH: 00918702 Polytrichum juniperinum Hedwig USA: Oregon Silverton: [data not captured] J. W. Thompson 4099M 1928-4-15
Pottiaceae FH: 01135678 Tortula princeps De Notaris USA: Oregon [data not captured] J. W. Thompson 4029 M 1928-4-7
Rhamnaceae GH: 00425968 Rhamnus californica occidentalis (Howell ex Greene) C. B. Wolf USA: California around Douglas Park J. W. Thompson 4518 1928-6-5
GH: 00425968 Rhamnus occidentalis Howell ex Greene USA: California around Douglas Park J. W. Thompson 4518 1928-6-5
Rubiaceae GH: 02359410 Galium boreale Linnaeus USA: Oregon [data not captured] J. W. Thompson 4746 1928-6-14
GH: 02359404 Galium boreale Linnaeus USA: Oregon [data not captured] J. W. Thompson 308 1928-7-8
GH: 02359388 Galium boreale Linnaeus USA: Oregon [data not captured] J. W. Thompson 4972 1928-7-9
GH: 02138493 Galium multiflorum Kellogg USA: Oregon [data not captured] J. W. Thompson 4645 1928-6-7
GH: 02138773 Galium oreganum Britton USA: Oregon [data not captured] J. W. Thompson 5079 1928-7-22
GH: 02139257 Galium serpenticum Dempster USA: Oregon [data not captured] J. W. Thompson 1928-5-20
Sarraceniaceae GH: 01678357 Darlingtonia californica Torrey USA: Oregon near Bandon J. W. Thompson 4427 1928-6-3
Saxifragaceae GH: 00042753 Heuchera ovalifolia thompsonii Rosendahl, Butters & Lakela USA: Oregon Cliffs south of Elgin J. W. Thompson 4833 1928-6-15
GH: 00043102 Saxifraga walteri Zhmylev USA: Oregon Mitchell's Point J. W. Thompson 4186 1928-5-14
Scrophulariaceae GH: 00365904 Diplacus aurantiacus (Curtis) Jepson USA: California along Smith River below Gasquet J. W. Thompson 4550 1928-6-6
GH: 00365904 Mimulus aurantiacus Curtis USA: California along Smith River below Gasquet J. W. Thompson 4550 1928-6-6