Class III. Order III. 29 



Stems spreading, ascending, rooting at the lower joints. 

 Leaves rough, their sheaths smooth. Panicle loose, consisting 

 of somewhat distant half whorls, its branches much subdivided 

 and roughish. Flowers lanceolate, shining, white or purplish 

 brown. Valves of the calyx equal, acute, rough on the back 

 only. Meadows. June, July. Perennial. 



AGROSTIS CANINA. L. Dogs Bent grass. 



Calyx elongated ; corolla with a dorsal, crooked 

 awn ; culms procumbent, somewhat branched. 



In mowing lands and about the borders of fields, probably from 

 Europe. July. 



AGROSTIS CLANDESTINA. MuhL Hidden Bent grass. 



Panicle spiked, partly concealed ; corolla much 

 longer than the calyx, hairy, slightly awned ; leaves 

 rigid, very long. 



A long, hard grass with concealed spikes. Found by road 

 sides and on dry soils. September. 



Subgenus POLYPOGON. Calyx and corolla terminating in 

 bristles. 

 AGROSTIS RACEMOSA. Mick. Racemed Bent grass. 



Panicle dense, interrupted ; bristles of the calyx 

 scabrous ; corolla awnless, hairy at base ; culm 

 branched. 



Syn. PoLrpocoN RACEMOSUS. Nuttall. 



Culm compressed, erect. Leaves erect, rigid. Panicle form- 

 ed of many conglomerated spikes. In wet meadows. August. 

 Perennial. 



30. CINNA. 

 CIIWA AURUN'DiNACEA. L. Reedy Cinna. 



Panicle large, capillary, loose ; culm smooth ; 

 leaves broad linear. 



Syn. JlcROSTis CINNA. Schreb. 



A large rank grass, three or four feet high, resembling some 



