150 STIPA. 



or 3, conspicuous ; Stigmas plumose. Perennials, 

 with rigid leaves, and a narrow raceme or panicle. 

 Spikelets greenish, rather large. (Name composed 

 of two Greek words orysa, rice, and apsis, likeness, 

 from a fancied resemblance to'that grain.) 



1. O. Melanocarpa, (Black Mountain Eice), is a 

 common grass in dry, rocky woods, with a leafy 

 stem from two to three feet high ; husks of the seed 

 blackish when ripe ; flowers in August. 



2. O. Asperifolia (White Mountain Rice). Steep 

 rocky hill sides, and in dry woods ; grows from a 



foot to eighteen inches high ; seeds farinaceous, and 

 make a fine and white flower but difficult in procur- 

 ing, as the grain drops so easily. Flowers in May. 



3. O. Ganadensis (Smallest, or Canadian Eice) 

 Eocky hills and dry plains ; rare ; flowers in May. 



15. STTPA, Linn. FEATHER GRASS. 



GENERIC CHARACTER. 



Spikelets 1 -flowered ; terete ; the flower falling 

 away at maturity (with the conspicuous obconical, 

 bearded, and often sharp-pointed callus) from the 

 membranaceous glums. Lower palet coriaceous, 

 involute, and closely embracing the smaller upper 

 one, and the cylindrical grain, having a long and 

 twisted or tortuous simple awn jointed with its apex. 

 Stamens mostly 3 ; stigmas plumose ; perennials, 

 with narrow, involute leaves, and a loose panicle. 

 (Name, a Greek word stype, tow, in allusion to the 



