CATALOGUE. 287 
BouTeLoua Graciiis, Hook.?—Low, 6-12’, densely ceespitose, much 
branched at the base; leaves short (1-2’), flat; spike with 6-10 slender 
spikelets, about 4’ long, nearly sessile, with two to three sterile flowers or 
bractlets, one perfect flower, and a rudiment which is 3-awned and longer 
than the perfect flower. This species is related to B. curtipendula, but much 
smaller and more delicate.-—Riley’s Well, Arizona, 1874 (701) [A sparse 
but good forage—J. T. R.] " 
Boutetoua PotystacuyA, Benth.—Culms low, czespitose (about 6-12’), 
smooth; leaves 1’ long, acute, ciliate at the top of the sheath; racemes 
numerous, graceful; spikes 2-5, subsessile, 4-6” long, erect; spikelets $ to 
#’ long; rachis compressed, margin minutely puberulent; flowers in two 
series on the rachis; glumes hyaline, lower one small, upper one with a 
short awn; palets 2-lobed, the lower with 3 awns, upper with 2, rudiments 
with 3 awns, which equal those of the flower—Arizona, 1871 and 1872; 
Gila Valley, 1874 (770, 352). 
BouTELOUA POLYSTACHYA, var. MAJOR ?—I use this name provisionally 
to designate a grass larger in all its parts than the preceding. Culms 1-14° 
high; racemes with mostly 5-7 spikelets, which are about 1’ long, rather 
on one side of the culm, sessile or nearly so, about 1’ distant; culms some- 
what branched below, rather leafy; leaves flat, 3-4’ long, scabrous on the 
margin. Probably this has been described as a distinct species —Sanoita 
Valley, Arizona, 1874 (691, 347). 
BouteLova HumspotpriAna, Griseb. ?—Under this name I have placed 
specimens from New Mexico, because of their correspondence to Cuban speci- 
mens of that name in the Herbarium. I do not know where the description 
is given. The grass is about 14° high, upper leaf very short; raceme 2-3’ 
long, of 4-6 spikes, each of which is about 4’ long, wide at the top, tapering 
below, of 4—6 long awned spikelets—Camp Bowie, Arizona, 1874 (484). 
Bouretoua sJuncirouiaA, Lag.—Culms 13-2° high, much branched 
below, leafy; leaves broadly linear-lanceolate, 4—6’ long, rather stiff, 
smooth panicle or raceme of 6-12 distant, rather coarse spikes, 4-3’ 
long, each of 5-7 spikelets; glumes lanceolate, nearly as long as the per- 
fect flower, acute, scabrous on the mid-nerve; lower flower perfect, upper 
ones staminate; lower palets of perfect flower tridentate, its terminal awn 
