42 Tennessee Flora. 



DESCHAMPSIA Beauv. 



Deschampsia flexuosa (L.) Trin. Mts. of E. Tenn., Ocoee 

 Valley, and Lookout ^It. July. 



TRISETUM Pers. 



Trisetum subspicatum (L.) Beauv. var. molle Gray. Sum- 

 mit of Roane Mountain. F. L. Scribner. July. 



T. Pennsylvanicum (L.) Beauv. T. palustre Torrey. 

 Moist places throughout the Alleghanies. June, July. 



AVENA L. 



Avena sativa L. Oat. Cultivated ; occurs frequently self- 

 sown in fields and on roadsides. July. 



Our common oats are, perhaps, derived from the wild oats 

 of Europe. Avena fatua L. a variable species, through culti- 

 vation. There are distinguished two classes — ** panicle oats," 

 with widely-spreading panicles, and " banner oats," with pan- 

 icles contracted and one-sided. Both of them vary again in 

 the envelopment of the grain, being either " chaiTy " or naked 

 fruited. Oats are also distinguished by the color of the grain, 

 as " white oats " or " black oats." Its cultivation reaches back 

 into prehistoric times. 



ARRHENATHERUM Beauv. 



Arrhenatherum elatius (L.) Beauv. Oat grass. Old City 

 Cemeterv and in fence rows, vicinitv of Nashville. June, 

 July. 



DANTHONIA D. C. 



Danthonia spicata (L.) Beauv. Wild oat grass. Hilltops 

 around Nashville, in siliceous soils. June. 



D. sericea Nutt. Cedar glades, Edgefield Junction ; dry 

 soils in the ridges of E, Tenn. May. June. 



D. compressa Aust. Throughout the higher mountains of 

 E. Tenn. ]u\w. 



CHLORIDE.^. 



CAPRIOLA Adans. 



Capriola Dactylon (L.) Kuntze. Cynodon Dactylon Pers. 

 Bermuda Grass. Does not mature seed and has to be prop- 

 agated bv cuttings. Along river banks and in grass plots, 

 where it soon suppresses the other grasses. July-September. 



SPARTINA Schreb. 



Spartina cynosuroides (L.) Willd. Marsh grass. Browns- 

 ville. W. Tenn. September, October. 



