448 
oblong, very obtuse, smooth, except the slight web at the base ; leaves 
and sheaths smooth ; ligule oblong acute; culms terete, weak. Perennial; 
flowers in May. Gulins 18 inches to two feet high. In woods. At 
Milwaukee, in Wisconsin. 
Plate VI.—Fig. 1, a young plant; 2, a spikelet; 3, glumes; 4, the 
flower, the glumes being removed. 
GG. Poa Nemoralis. Linn ecus . 
Culm flattish ; leaves pale, rather long; ligules very short; branches 
of the loose nearly sessile panicle, filiform, nearly erect, with several 
about three-flowered spikelets above the middle; flowers lanceolate, 
acutish, obsoletely nerved, minutely soft-hairy along the keel below, 
naked on the sides; culm and leaves smooth. Perennial; flowers in 
June Culms 1 to 2 feet high. Woods, Ac. Wisconsin and Illinois. A 
native also of Europe. 
This wild grass prefers the shade of trees, and possesses but little 
value to the farmer, though its early growth in the spring, its fine, suc¬ 
culent, nutritive herbage, indicate that it is worthy of attention. It has 
recently been cultivated to some extent in England. 
67. Poa Sylvestris. Gray. 
Culm flattened, slender, upright; leaves pale, linear; those of the culm 
much shorter than the internodes; ligules short; panicle pyramidal ob¬ 
long, long-pcduncled; branches numerous from each joint, bearing two 
to three-flowered spikelets from about the middle ; flowers oblong, obtuse, 
rather distinctly nerved, densely silky-hairy on the whole length of the 
keel and on the margins to the middle. Perennial. Culms to 3 feet 
high. Rocky banks and meadows. Wisconsin, Ohio and Michigan. 
68. Poa Alpina. Linnaeus . 
Spikelets ovate, compressed, large, short pedicelled ; leaves short ob¬ 
tuse, broad ; ligules below short, truncate, above oblong, acute; culm 
erect; roots fibrous ; panicle ovate, erect, the branches in pairs. Peren¬ 
nial ; flowers in June. Culms 6 inches high. Lake Superior. Also in 
the mountains of Europe. 
69. Poa Serotina. Ehrliart. 
Syn.— Poa palustris, Muhl. P. crocata, Micbx. False red-top. 
Culm terete slender, bearing narrowly linear leaves, shorter than the 
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