306 OHIO BIOLOGICAL SURVEY 



straight awn ; palet rigid, 2-nerved ; grain oblong, free, enclosed 

 in the flowering glumes. 



1. Brachyelytrum erectum (Schreb.) Beauv. Brachyelytrum. 

 A grass with erect, slender, simple stems, 1-3 ft. high, with sparingly 

 retrorse-hispid sheaths, and with slender, narrow panicles. Empty 

 glumes unequal, the outer often obsolete ; lemma 5-nerved with an 

 erect awn. 



In moist, rocky woods. July, August. Cuyahoga, Portage, 

 Lorain, Wayne, Highland, Franklin, Madison, Hocking, Adams. 



46. Milium L. Millet-grass. 



Annual or perennial grasses with flat leaves and terminal open 

 panicles. Spikelets 1-flowered; empty glumes equal; lemma shining, 

 indurated, the margins inrolled ; palet similar, scarcely shorter ; grain 

 free, tightly enclosed in the rigid, shining flowering glumes. 



1. Milium effusum L. Tall Millet-grass. A glabrous perennial 

 grass with erect, simple stems, 2-6 ft. high, and a lax panicle with 

 long, slender, somewhat flexuous branches, in remote pairs or 

 fascicles, spikelet-bearing from about the middle. Empty glumes 

 equal ; lemma smooth, white. 



In woods. June, July. Lake, Cuyahoga, Lorain, Wayne, Stark. 



47. Oryzopsis Mx. Mountain-rice. 



Tufted perennial grasses with flat or convolute leaves and panicu- 

 late few-flowered inflorescences. Spikelets, 1-flowered, broad; empty 

 glumes rather broad, about equal, obtuse or acuminate ; lemma some- 

 what indurated, convolute, bearing a terminal deciduous slender awn; 

 palet rather large ; grain free, tightly enclosed in the convolute lemma. 



1. Oryzopsis racemdsa (Sm.) Ricker. Black-fruited Mountain- 

 rice. A glabrous grass with erect, tufted stems, 1^-3 ft. high, and a 

 small panicle with nearly simple usually ascending branches. Empty 

 glumes about equal, acute ; lemma dark colored, acute, sparingly 

 pubescent, with a long awn. 



In rocky woods. July-Sept. Geauga, Summit, Erie, Greene, 

 Highland. 



48. Stipa L . Porcupine-grass. 



( renerally tall, tufted perennial grasses with convolute leaf-blades 

 and loose terminal panicles. Spikelets 1-flowered, narrow; empty 

 glumes narrow, acute or bristle-tipped; lemma convolute, rigid, with 



