Figur*' 10. A densely wcxkIc*! liaiik in one of the canyons along the Missouri River near 

 Missouri Valley, Iowa. lUhi \ (//•((<•//< in the forevtroiind, Pninus Virginiana and other 

 shrubs farther back; underneatli these bushes Dii'cntra c.ucuUaria and Viola cuciiUala 

 grow in abundance. Photograplii'd by L. H. Pammel. 



