134 BULLETIN 772, U. S. DEPARTMENT OF AGRICULTURE. 



Cinna arundinacea (fig. 72), with somewhat contracted panicle and 

 spikelets 5 mm. long, grows in moist, usually shaded places in the 



eastern United States; C. latifolia 

 (Trev.) Griseb., with open panicle 

 and spikelets 4 mm. long, grows in 

 damp woods across the continent in 

 the northern part of the United States, 

 mostly at medium and high elevations. 



Both species furnish ex- 

 cellent forage, but are usu- 

 ally not abundant enough 

 to be of much importance. 



60. LIMNODEA L. H. Dewey. 



Spikelets 1-flowered, 

 disarticulating below the 

 glumes, the rachilla pro- 

 longed behind the palea as 

 a short, slender bristle; 

 glumes equal, firm; lemma 

 membranaceous. smooth, 



FIG. 72. Wood reed-grass, Cinna arundinacea. , '., _ . 



Plant, x i ; spikeiet and floret, x 5. nerveless, 2-tootned at the 



