356 



GRASSES OF IOWA, 



Bromus teotorum, L , is another worthless immigrant which 

 has made its appearance at several points in waste places 

 about cities. This is a tufted annual, from one to two feet 

 high, erect or somewhat geniculate at the base. This species 

 is of little value for forage purposes. For forage purposes it 

 is not as good as Bromus hordeaceus. 



The woodland chess {Bromus ciliatus, L.) makes a vigorous 

 growth early in the season. Though never abundant in one 

 place, it is widely scattered in timber and affords excellent 

 forage in the timber lot. 



CHEMICAL COMPOSITION. 



The South Dakota (1) station analyzed one sample of the 

 grass, with the following results: 



Bromus pur gans, L. — This is taller and stouter than B. cilia- 

 tus, a perennial, from two to three and a half feet high. Culm 

 is erect and smooth, with somewhat drooping panicles. This 

 species is common in moist meadows, in some cases covering 

 considerable area. The form most common in Iowa is the Bro- 

 mus purgans latighimis, which is indeed a most excellent grass 

 in moist meadows in north central Iowa. In chemical compo- 

 sition this compares with Bromus ciliatus. 



Schrader's Brome grass {B. unioloides, Willd.), a native of 

 South America, has not been cultivated in Iowa, though no 

 doubt would succeed, as it is hardy in northern Colorado. It 

 is one of the valuable winter grasses of the south. 



This species was described and figured by Willdenow in 1806 

 from specimens growing in the botanical garden at Berlin, the 

 seed originally coming from South Carolina, but the grass is 



1 South Dak. Bull. 40. 143. 



