‘Poa. TRIANDRIA DIGYNIA. 341 
mous, expanding, insertions hairy, spikelets twenty-flowered. Seed 
globular. 
A pretty large species, growing in tufts on old walls, so exactly 
resembling P. unioloides as to be easily mistaken for it. It has much 
the habit of Briza Eragrostis. 
Culms sub-erect, winding, round, smooth; from one and a half to 
two feet high.— Leaves much larger than in the last species, and the 
mouths of the sheaths more hairy.— Panicle oval, very large, gene- 
rally more than half the length of the whole plant, branches alter- 
nate, nearly horizontal, ramous, with a brown, hairy gland in the axil 
of each division of the panicle.— Spikelets white, or pale green, 
lanceolate, large, about ino fov ered.— Seed globular, brown, z 
and smooth. 
19. P. paniculata. R. 
Erect, smooth, from two to four feet high. Leaves long; mouths - 
of their sheaths bearded. Panicle oblong ; ramifications most nu- 
merous, filiform ; insertions hairy. Spikelets from four to sixteen- 
flowered; valvelets of the calyces ciliate. Seed globular. 
Culm süb-erect, round, and smooth ; length from one to two feet 
high to the panicle, which is about the same length, making the 
whole height from three to four feet-— Leaves large, mouths of the 
sheaths very hairy.— Panicle oblong, very large, composed of numer- 
ous, ramous, filiform, expanding branches, their insertions and sub- 
divisions involved in fine, long, white hairs. Spikelets long-pedicel- 
led, linear, from four to sixteen-flowered.— Corol, outer valve round at 
- the apex, and three-nerved ; inner one slightly ciliate on the back. 
20. P. gangetica. R. le 
- Grows in very dense tufts, Panicle thin ; spikelets linear, from 
thirty to forty-flowered. 
A native of the banks of the Ganges, but scarce. 
Culms numerous, and ramous, growing in crowded tufts, smooth 
in every part, general length about a foot.— Leaves few, small, and 
smooth. Panicle ovate, composed of a few, remote, alternate, sub- 
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