GENERA OF GRASSES OF THE UNITED STATES. 151 
Montana and Texas. Sporobolus wrightii Munro, saccaton, is much 
taller, with a large but narrow panicle. This is found from Arizona 
to western Texas. ) 
Most of the per- 
ennial species of 
Sporobolus are pal- 
atable forage 
grasses, but few of 
them are abundant 
enough to be of im- 
portance. On the 
Arizona Plateau, S. 
interruptus Vasey 
isanimportant 
range grass. It is 
called black sporo- 
bolus, because of 
the dark, narrow, 
loosely flowered 
panicle. 
70, BLEPHARONEURON 
Nash. 
Spikelets 1-flow- 
ered, the rachilla 
disarticu lating’ 
above the glumes; 
glumes subequal, 
rather broad; 
lemma _ 3-nerved, 
the nerves densely 
pilose; palea 
densely pilose be- 
tween the two 
nerves. 
A perennial grass 
with an open, nar- 
row panicle. Spe- \ 
SS = 
SSS 
= “=e 
cies one ; southwest- yj , 
ern United States a df, y 
and northern Mex- { Ly, w, 
. VA Le) > 
100. (e (Se » 
Type species: Vilfa Beis) Ms ey 
tricholepis Torr. COCA NS t 
Blepharoneuron \ \\ waa 
Nash, Bull. Torrey *. Ne Gif 
Club 25: 88 1898. oe s\ Ss 
Only one species men- ~\E = 
tioned, B. tricholepis ic. 85.—Sand dropseed, Sporobolus eryptandrus. Plant, 
(Torr.) Nash. X 4; spikelet and floret, the palea splitting, 5. 
