OF TEE UPPER MISSOURI. 
197 
Lepachys cotumnaris, Torr. and Gray. Common throughout the Missouri country, 
but most abundant from Council bluffs to Niobrara river, on the rich broad 
bottom prairies. In flower, July 8th. Rays usually yellow, sometimes of a 
deep purple velvet. 
Lepachys pinnata, Torr. and Gray. Vermilion prairie. Rare. 
RudbecJda Iiirta, Linn. Council bluff's. 
Helianthus petiolaris, Nutt. Common from Sargent’s bluffs to Fort Union. 
Ilelianthus rig ictus , Defs. From Bellevue to Yellowstone. 
Helianthus lenticular is, Dough Fort Pierre. Abundant in Indian cornfields at Fort 
Mandan. 
Helianthus Maximiliani, Schrad. Fort Pierre to Fort Union. 
Helianthus hirsutus, Raf. Big Sioux river. 
Coreopsis palmata, Nutt. Bellevue, N. T. 
Bidens bipinnata, Linn. Bellevue, N. T. 
Bidens chrysanthemoides , Michx. Yellowstone river. 
Bcdsamorrhiza sagitteda, Nutt. Black bills. 
Linosyris viscidiflora, Torr. and Gray. Fort Union. 
Linosyris graveolens , Torr. & Gray. Sterile bills on the Yellowstone; very common; 
also Bad Lands; the larger glabrous, and the smaller a stinted canescent form. 
Thclespermci jilifolia, Gray. Platte valley, July 30th. 
Thelesperma gracile , Gray. Sand bills, July 24th. 
Dysodia chrysanthemoides, Michx. On the Yellowstone. 
Gaillardia aristata, Pursh. Fort Union. 
Hymenopappus tenuifolius, Pursh. Big Sioux to Fort Union and Bad Lands. 
Bahia appositifolia, N utt. Common on roadsides and in prairie dog villages, from 
Fort Pierre to Bad Lands and to the Yellowstone. 
Actinella acaulis, Nutt, On high sterile bills, Bad Lands, and Yellowstone. 
Actinella Richarclsoni, Nutt. Fort Union. 
Actinella lancda , Nutt, Niobrara river. 
Helenium autumnale, Linn. Kansas and Southern Nebraska. 
Anthemis arvensis, Linn. Naturalized to Fort Leavenworth. 
Achillea millefolium, Linn. Found all over the prairie country of tile West; must 
be indigenous west of the Mississippi. 
Antennaria plantaginea, R. Br. Upper Missouri and Black bills. 
Antennaria dioica, Gaertn. Fort Pierre to Yellowstone. 
Antennaria margaritacea, R. Br. Laramie mountains. 
Antennaria dimorpha, Nutt. Bad Lands. 
