BULLETIN 
TORREY BOTANICAL CLUB. 
Vol. XIII New York, December, 1886. [No. 12. 
New Species of Mexican Grasses. 
Collected by Dr. Ed. Palmer, in S. W. Chihuahua, in 1885, 
By Dr. GEO. VASEY. 
ERIOCHLOA ARISTATA.—Culms 3 to 4 feet high, rather stout, 
decumbent and branching below, leafy, smooth below, scabrous- 
pubescent below the panicle; nodes finely pubescent or glabrous ; 
sheath loose, smooth ; ligule a ciliate ring; blade 5 to 8 inches 
long, % to 34 inch wide, acuminate, smooth, scabrous on the 
margin; panicle 6 to 8 inches long, simple, rhachis and branches 
scabrous-pubescent; branches irregularly disposed, mostly al- 
ternate, somewhat clustered below, nearly sessile and flowering 
to the base, 1% to 2 inches long, numerously flowered ; spikelets 
one-flowered, empty glumes acuminate into an awn which is % to 
¥% their length, 4 to 6 lines long including the awn; flowering 
glume nearly 2 lines long, shortly mucronate, finely striate. 
With this are fine specimens of Eriochloa Lemmoni, V. and S., de- 
scribed in the Bot. Gazette for Dec., 1884. 
SETARIA LATIGLUMIS.—Culms 10 to 18 inches high, simple 
or branching, slender, rather leafy, nodes finely pubescent; 
sheaths compressed, narrow, sparsely scabrous- pubescent, shorter 
than the internodes; ligule ciliate, blade narrow, 4 to 6 inches 
long, smoothish ; spike 3 to 4 inches long, erect, loosely flowered; 
branches mostly few-flowered, sometimes the lower five to six and 
the upper one to two-flowered, mostly with one bristle to each 
flower; spikelets large, 2 lines long, 1 line wide; first empty 
glume ¥% as long as the second, seven to nine-nerved, wider 
than long; second glume 2 lines long and as wide, about 
fifteen-nerved, cordate or auriculate at base, obtuse ; third glume 
(that of the male flower) oblong-ovate, swollen at the base, 2 
lines long, more than half as wide, about eleven to thirteen- 
