MANUAL OF THE GRASSES OF THE UNITED STATES 277 



to 4 mm long, sometimes short-awned, the rachilla joints very short. 

 9J. Prairie, open woods, and sandy soil, Ontario to British Colum- 

 bia, south to Delaware, Missouri, Louisiana, California, and Mexico 



FIGURE 542. .4 Koeleria cristata. Plant, X Yz, glumes and floret, X 10. (Bebb 2862, 111.) B, K. phleoides. 

 Panicle, X 1; glumes and floret, X 10. (Heller 11417, Calif.) 



(fig. 543); widely distributed in the temperate regions of the Old 

 World. Variable; several American varieties have been proposed, 

 but the forms are inconstant and intergrading and it is not practicable 



