Harvard University Herbaria & Libraries

Aceraceae
A: 01792041 Acer negundo interius (Britton) Sargent USA: Colorado Chautauqua mesa, above Boulder J. A. Ewan 11892 1939-4-29
Boraginaceae
GH: 01995026 Lappula redowskii (Hornemann) Greene USA: Colorado Boulder: between the flagstones of amphithea... J. A. Ewan 11901 1939-5-18
GH: 01995025 Lappula redowskii (Hornemann) Greene USA: Colorado Mule Shoe, east slope of La Veta Pass J. A. Ewan 12002 1939-7-2
GH: 01996649 Lithospermum multiflorum Torrey USA: Colorado on Niobrara shale ridge; 6 miles north of Bo... J. A. Ewan 11942 1939-5-25
GH: 01996764 Lithospermum occidentale (Mackenzie) Weakley, Witsell & D. Estes USA: Colorado Boulder mesa at foot of Flagstaff Mt. J. A. Ewan 11968 1939-6-8
GH: 01996760 Lithospermum occidentale (Mackenzie) Weakley, Witsell & D. Estes USA: Colorado Boulder mesa at foot of Flagstaff Mt. J. A. Ewan 11968 1939-6-8
GH: 02059432 Mertensia sp. USA: Colorado Summit of Monarch Pass; Gunnison-Chaffee Co.... J. A. Ewan 12050 1939-7-4
GH: 02059430 Mertensia sp. USA: Colorado Boulder mesa at foot of Flagstaff Mt. J. A. Ewan 11962 1939-6-8
GH: 02061321 Oreocarya thyrsiflora Greene USA: Colorado Greenhorn Valley, 3 miles north of Crow J. A. Ewan 11983 1939-7-2
Brassicaceae
GH: 01548643 Lepidium draba chalepense (Linnaeus) Thellung USA: Colorado Boulder: Euclid at 12th J. A. Ewan 11896 1939-5-18
Rhamnaceae
A: 01789465 Ceanothus fendleri A. Gray USA: Colorado Boulder mesa at foot of Flagstaff Mt. J. A. Ewan 11969 1939-6-8
Rosaceae
A: 01590541 Physocarpus monogynus (Torrey) J. M. Coulter USA: Colorado Boulder mesa at foot of Flagstaff Mts. J. A. Ewan 11970 1939-6-8
A: 01590542 Physocarpus monogynus (Torrey) J. M. Coulter USA: Colorado 6 miles north of Boulder, on Lyons road J. A. Ewan 11952 1939-5-25