GRAMINEJE. (GRASS FAMILY.) 613 
always) with 3 stamens. 1J. (P. Walt6ri, Poir.)— Moist thickets, 
common. June. 
11. P. ClaiHlcstinillVl, L. Culm rigid (l 0 -3? high), very 
leafy to the top, at length producing appressed branches, the joints 
naked; sheaths rough with papilla bearing spreading bristly hairs; 
leaves oblong-lanceolate from a heart-clasping base, very taper-point¬ 
ed; lateral and usually the terminal panicle partly or entirely inclosed 
in the sheaths , or, in var. pedunculAtum, with the terminal one at 
length long-peduncled: — otherwise resembling the last, but thespiAe- 
lets more ovoid , often smooth; the lower flower (always?) neutral._ 
Low thickets and river-banks. August. 
12. P. microctfrpon, Mu hi. Culm and sheaths as in No. 
10 ; the broadly lanceolate leaves nearly similar, but longer in propor¬ 
tion and less taper-pointed, not dilated at the rounded bristly-ciliate 
base, very rough-margined, the upper surface roughish; panicle soon 
exserted, very many-flowered, narrowly oblong (3'-7' long); spike- 
lets long, ovoid, smooth or smoothish ; lower glume orbicular, very 
small. 1J. (P. multiflorum, Ell.?) — Thickets, Penn, and southward* 
13 P. xautliopliysum. Gray. Culm simple, or at length 
branched near the base (9 7 — 15 7 high) ; sheaths hairy; leaves lanceo¬ 
late, very acute (d'-G 7 long by £ 7 wide), not dilated cU the ciliate-beard- 
ed clasping base, smooth except the margins, strongly 9-11-nerved ; 
panicle long-peduncled', simple, contracted , the appressed branches bear¬ 
ing few roundish-obovale spikelets long ; lower glume ovate, acut- 
ish, i to ^ the length of the 9-nerved upper one. 1J. — Dry sandy 
soil, Maine to Wisconsin and northward, rare. June. — Plant yellow¬ 
ish-green : spikelets minutely downy: ster. fl. sometimes staminate. 
14. P. viscitluvil, Ell. Culms upright or ascending, at length 
much branched, leafy to the top, densely velvety-downy all over, as also 
the sheaths , with reflexed soft and often clammy hairs, except a ring 
beloio each joint; leaves likewise velvety all over , lanceolate (i 7 unde), 
11 -13 -nerved ; panicles spreading, the lateral included ; spikelets ob- 
ovate , \ n long, downy, the roundish lower glume scarcely \ the length 
of the 7-nerved upper one. — Damp soil, S. New Jersey and south ward. 
15. P. paucifldrillll. Ell.? Culms upright, at length much 
branched and reclining (l°-2° long), roughish ; leaves lanceolate (3 7 - 
5 7 long by $ 7 wide), rather faintly 9-nerved, hairy or smooth, 
fringed on the whole margin or next the base with long and stiff 
spreading hairs, the sheaths bristly throughout with similar hairs; pan¬ 
icle open, nearly simple, bearing few tumid-obovate hairy or smoothish 
spikelets about 1£" long ; lower glume roundish, £ to £ the length of 
the upper. 1J. (P. leucoblepharis, Trin. ?) , — Wet meadows and 
copses, N. Pennsylvania (Carey) and W. New lork to Michigan. 
June, July. — Distinguished by its much larger spikelets, more nerv¬ 
ed leaves, and coarser aspect, from any form of the next. 
52 
