OF THE UPPER MISSOURI. 
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Geum rivale, Linn. Laramie mountains. 
Potentilla glandulosa , Nutt. Laramie mountains, August 24th. 
Potentilla Norvegica, Linn. Council bluffs to Yellowstone. 
Potentilla paradoxci, Nutt. Along banks of Missouri. 
Potentilla effusa , Dougl. X Prairie near Fort Clark. 
Potentilla Pennsylvanica, Linn, var. strigosa. Bad Lands. 
Potentilla diversifolia, Lehrn. Bad Lands. 
Potentilla rigida, Nutt. Yellowstone. 
Potentilla Canadensis , Linn. Big Sioux river. 
Potentilla anserina , Linn. Niobrara river to Fort Pierre. 
Potentilla fruticosa , Linn. On the Yellowstone. 
Potentilla arguta, Pursh. Fort Clark and Fort Union. 
Sibbaldia procumbens , Linn. Laramie mountains, August 24th. 
Fragaria vesca , Linn. Along Missouri to Yellowstone. 
Fmgaria Virginica, Ehsh. Fort Union. 
Sanguisorba annua , Nutt. Fort Union. 
Rubus occidentalism Linn. Council bluffs. 
Rubus strigosus, Mich. Sparingly on Yellowstone. 
Rubus villosus , Ait. Council bluffs. 
Rosa blancla, Ait. On prairies generally. 
Rosa lucida , Elirh. White river ; Fort Pierre. 
Crataegus punctata, Jacq. White river; Big Bend, &c. 
Crataegus tomentosa , var mollis , Gray. Mouth of Big Sioux. 
Amelanchier Canadensis, Torr. and Gray. Common throughout the Upper Missouri 
country; bears a delicious fruit, which ripens in June. 
LYTHRACE^E. 
Lythrum alatum, Pursh. Rich alluvial bottoms, Platte valley, June 3d. 
ONAGRACE2E. 
Epilobiurn minutum , Lindl. Black hills, September 10th. 
Epilobium angustifolium, Linn. Not uncommon in Ivansas ; also near Council bluffs. 
Oenothera pinnatifida , Nutt. Bad Lands to Yellowstone. 
Oenothera albicaulis, Nutt. Same localities. 
Oenothera caespitosa, Nutt. Bad Lands, See.; the common form with large flowers, 
and another one with flowers not more than one inch in diameter. 
Oenothera montana , Nutt. Yellowstone; a small pubescent form of the latter \ 
Oenothera coronopifalia, Torr. and Gray. Niobrara, August 15th. 
Oenothera serrulata, Nutt. Fort Pierre, and through the whole region in different 
varieties. 
