434 TRANS. OF THE ACAD. OF SCIENCE. 
however, sends specimens from New Braunfels, Texas, with 
stolons 1—2 feet long, the internodes often measuring over 
3 and even as much as 5 inches. The male plant seems to 
throw out more numerous runners than the female, and may 
often overspread and kill it out, yee would account for 
the much greater scarcity of the la 
Leaves 2—4 inches long, 3—1}4 =F wide, sparsely hairy 
or ciliate or glabrous; sheaths striate, glabrous, strongly 
bearded at the throat. 
The flowering stems of the male plant are 4—6 or rarely 
8 inches high, mostly glabrous or very sparsely hairy, i 
rally longer than the leaves, and bear 2 or 3 alternate 0 
nc A spikes. These spikes are 38 lines long, and bear 
on the lower, outer, side of the flattened, dentate, pubescent 
rhachis 6—15 minutely puberulent spikelets, alternate 12 
_two rows; the uppermost spikelet is usually abortions and is 
represented by a bristle. The spikelets are 2 or rarely 3 lines 
long, with 2 or sometimes 3 subterete fowens’ = are, as 
The 
upper edge of the flowers, leaving the lower he free. 
smaller lo ower glume is, as in this whole tri be of ae 
more conspicuo ‘ 
Lower glume i dvihataisnibenis, with a wae 
convex, scarcely carinate, one-nerved, 0 veh 
mucronate, one-third or one-fourth the nate 
on the Lacie spikelet of each Be age 
and almost equal to the upper glum 
Upper oe ght twice as long as ad lower one, 0 
ovate, 0 a strong middle nerve W 
runs eg into a point or a short awn between two a 
ceous teeth; in a specimen from Fort Kearny, I ‘ oath; 8 
lower aide a second nerve running out into a ogee - 
third nerve on the upper side is very ‘nas ; other 
lets of the same specimen show the o 
the lower flower running out into a mucro, } in| 
mostly even with the membranaceous margin. 
Upper palea as lo as, OF & little excel 
which pre sires ie it, 2-nerved, 2-carinate, 
scarious 
Scal ee 
cule, 2 at the n and inst 
palea, pemiens tiangulartruneaty a undulate - eae 
‘Stamens 8, scarcely exceeding the palew; hoe. 2b 
bifid at both ends, 1 line long; filaments much 
