MANUAL OF THE GRASSES OF THE UNITED STATES 367 



mm wide; panicle oblong, open, 10 to 20 cm long, the capillary 

 branches and pedicels ascending; spikelets about 2 mm long, the 

 glumes subequal, slightly shorter; lemma and palea minutely sca- 

 berulous-puberulentr 01 (Sporobolus compressus Kunth; S. torrey- 

 anus Nash.) — Moist pine barrens and meadows, New Jersey and 

 Delaware; Georgia (Sumter County). 



15. Muhlenbergia uniflora (Muhl.) Fernald. (Fig. 752.) Peren- 

 nial, but often appearing like an annual, tufted, often with decumbent 



Figure 748— Muhlenbergia arenacea. Plant, X 1; glumes and floret, X 10. (Tracy 7909, Tex.) 



bases; culms slender, erect, 20 to 40 cm tall, the base and lower sheaths 

 compressed; blades flat, crowded along the lower part of the culm, 

 about 1 mm wide; panicle loose, open, oblong, 7 to 20 cm long, 2 to 4 

 cm wide, the branches and pedicels capillary; spikelets dark purplish, 

 about 1.5 mm long, rarely 2-Qowered; glumes scarcely half as long as 

 the spikelet, subacute; lemma faintly 3-nerved, acutish. % (Sporo- 



55974°— 35 24 



