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Rosa arkansana
Smilacina racemosa (Maianthemum racemosum)
Solidago rigida
Trillium cernuum
Trillium grandiflorum
Viola pedata
Viola pedatifida
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
Warm front sunset
The American Jewish World, Volume 31, Number 22, January 29, 1943
"The World - It's Natural and Human Resources," discussion, Special Bulletin no. 24
The American Jewish World, Volume 31, Number 21, January 22, 1943
The American Jewish World, Volume 31, Number 20, January 15, 1943
The American Jewish World, Volume 31, Number 19, January 8, 1943
Arlington Playground Site, City of St. Paul
The American Jewish World, Volume 31, Number 18, January 1, 1943
Angelica atropurpurea
Angelica atropurpurea
Annual rings of Salix
Annual Rings of the Common Locust
Aquilegia on rock cliff
Calvatia, advanced stage showing cup
Calvatia, near
Castalia tuberosa
Coprinus comatus, advanced stage
Coprinus comatus, mature
Coprinus comatus, young and old
Corallorrhiza trifida
Drosera rotundifolia
Drosera rotundifolia, nearer
Epipactis tesselata (Goodyera tesselata)
Epipactis tesselata (Goodyera tesselata)
Fomes fomentarius
Geranium maculatum
Geranium maculatum, nearer view
Geranium maculatum, near, in flower
Geranium maculatum, near, in flower
Gleditsia triacantha leaf
Habenaria obtusata (Platanthera obtusata)
Habenaria obtusata (Platanthera obtusata)
Lysimachia nummularia