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ON THE GEOLOGY AND NATURAL HISTORY 
CORNACEiE. 
Gornus florida, Linn. Along the rich wooded bottoms as far as Fort Leavenworth. 
Gornus stolonifera, Michx. Wooded bottoms of Missouri from mouth to source. 
Gornus sericea , Linn. Abundant along Missouri bottoms. The inner bark is much 
used by the Sioux Indians with their tobacco in proportion of three to one; called 
by them the “ red osier.” 
CAPRIFOLIACEiE. 
Symphoricarpus occidentalism R. Br. The most abundant shrub along the rivers and 
streams from the mouth of the Missouri to the mountains; often called “ blue 
woodmuch used for making brooms; sometimes covers the river bottoms almost 
exclusively. 
Lonicera hirsuta , Eat. Bellevue. 
Triosteum perfoliatum, Linn. Not rare as high up the Missouri as mouth of Big Sioux. 
Sambucus Canadensis, Linn. Common along Missouri; seen in the valley of Yellow¬ 
stone. 
Viburnum Lentago, Linn. Fort Union, Blackfoot country. 
RUBIACEiE. 
Galium aparine, Linn. Kansas river. 
Galium trifidum, Linn. Council bluffs. % 
Galium triflorum , Michx. Fort Pierre, Fort Union, &c. 
Galium asprellum, Michx. Council bluffs. 
Galium circaezans, Michx. Bellevue, N. T. 
Galium boreale , Linn. Fort Clark, Fort Union. 
Oldenlandia angustifolia , Gray. Along Missouri to Council bluffs. 
Oldenlandia purpurea. Gray. Bellevue, N. T. 
COMPOSITE. 
Vernonia fasciculata , Michx. Quite common on prairies, valley of Missouri. 
Kuhnia eupatoroides, Linn. Council bluffs to Niobrara. 
Eupatorium perfoliatum , Linn. On rich bottom prairies near mouth of Big Sioux. 
Eupatorium purpureum, Linn. Council bluffs to James river. 
Eupatorium ageratoides , Linn. Woody bottoms Council bluffs to Fort Pierre. 
Eupatorium serotinum , Michx. Bellevue, N. T. 
Liatris squarrosa, Willd. A smoothish and a rough hairy form; prairies in Kansas 
and Nebraska, common; root tuberous. 
Liatris punctata. Hook. Common on prairies along the Yellowstone; root ligneous, 
elongated, horizontal. 
Liatris pycnostachya, Michx. Common on prairies. Bellevue, N. T. 
