392 POACE^. 



brown, 5-8 mm. long, twisted two to three times around; palea 

 broad, less than 3 mm. long. Flowers sometimes cleistogamous, 

 as discovered by C. G. Pringle. See Am. Jour. Sci. p. 71, Jan. 

 1878. 



Vermont, Pringle; Massachusetts, Beal 85; New York, 

 Clinton for Clark 1417; Pennsylvania, Scrihier for U. S. Dept. 

 Agricul. 493; Michigan, Cooley, Beal 84, Wood, Wheeler, Far- 

 wellj Minnesota, Bailey 12. 



New England to Minnesota and Texas, dry sterile soil. 



5. D. compressa Austin. Peck in 22d Kept. Keg. N. Y. State 

 TJniv.54 (1869). I). Al I eni Austin, Bull. Torr. Club, 3: 21 (1872). 



Culms tufted, slender, 10-20 cm. high. Sheaths naked, with 

 silky hairs at the throat; blades narrow, long, the lower ones often 

 reaching to the panicle. Spikelets about 10, in a narrow panicle, 

 5-7-fiowered, empty glumes equal, reaching to the top of the florets, 

 10-11 mm. long, 5-nerved; floral glume broad, 7-nerved, over 3 

 mm. long, silky hairy on the back and near the base and margins, 

 teeth 3-4 mm. long with an awn twice its length, making two 

 turns; palea broad, reaching to the base of the teeth of its glume, 

 obtuse, with numerous fine short hairs on the nerves. 



^^ermont, Pringle; North Carolina (Koan Mt.), Scribn., 490, 

 Curtiss 3541*. 



Found with D. spicata in the mountains of North Carolina. 



New England, New York, Pennsylvania, mountains of North 

 Carolina. 



Very likely this has been confused wnth the former species in 

 other localities. 



6. D. intermedia Vasey, Bull. Torr. Club, 10:52 (1883). 

 Culms 30-50 cm. high, leafy below; ligule a hairy ring; blades 



of sterile shoots 15-25 cm. long, narrow. Panicle narrow, dense, 

 about 4 cm. long. Spikelets 5-flowered; empty glumes broad, 

 nearly equal, 12 cm. long, 5-nerved, with cross veins; floral glume 

 7-nerved, 5-6 mm. to base of teeth, which are 1-1.5 mm. long, 

 smooth on the back, silky hairy near the margins ; palea reaching 

 to near the middle of the teeth of its glume, 2-toothed. Grain 2.5 

 mm. long, flattened, obovate. 



