182 BULLETIN 112, U. S. DEPARTMENT OF AGRICULTURE. 
times sufficiently abundant locally to be an important forage 
grass, and is not infrequently used for hay. The European 
form has 2-flowered 
spikelets. 
90. Spartina Schreb. 
Spikelets 1-flow- 
ered, much flattened 
laterally, sessile and 
usually closely im- 
bricate, on one side 
of a continuous ra- 
chis, disarticulating 
below the glumes, 
the rachilla not pro- 
duced beyond the 
floret; glumes 
keeled, l-nerved. 
Fig. 108. — Slough-grass, Beckmannia erucaeformis. Plant, X I ; spikelet and floret, 
X 5. 
