14 University of Texas Bulletin 



Melica mutica Walt. Narrow Melic Grass. 



Colorado River bluffs at Deep Eddy, in rich moist soil. 

 Eastern and central states. 



Poa annua L. Annual Poa. 



Abundant in waste and cultivated grounds. The first grass to bloom 

 in the spring or winter. 



Naturalized from Europe. Found throughout nearly the whole 

 of North America. 



Poa arachnifera Torr. Texas Blue Grass. 

 Moist ground in the valley of Shoal Creek. 

 Southern-central states. 



Rhomb olytrum albescens Nash. (Sieglingiu albescens Kuntze.) White 

 Prairie Grass. 

 Along the I. & G. N. Railroad. 

 Prairies of the southern-central states. 



Tridens albescens W. & S. (Triodia albescens Bent.; Tricuspis al- 

 bescens Munro). 

 Prairies of southern Texas and New Mexico. Kansas to Texas, 

 and New Mexico. 



Tridens muticus Nash. (Sieglingia mutica Kuntze.) 

 Dry hillsides. Mt. Bonnell. 

 Texas to Arizona and in northern Mexico. 



Uniola latifolia Michx. Wild Oats. Broad-leaved Spike Grass. 

 Moist soil. Rich soil of shaded river bluffs. 

 Eastern and central states. 



Tribe Hordeae 



Elymus canadensis L. Wild Rye. Lyme Grass. 

 Moist ground. Shoal Creek Valley, etc. 

 Central states. 



Hordeum pusillum Nutt. Wild Barley. 



Agundant in dry soil, waste and cultivated places. 

 Central states, Wyoming and California. 



Lolium perenne L. Rye Grass. 

 Rare here. 

 Naturalized from Europe. Widespread in the United States. 



