76 POACEAE 
thin white cartilaginous margin, darc Jes or erect, 5-8 mm. long, oe 2d 
m ee appre ressed- Pp paniele 4—7 e E Spike elets about 
nal phase widely spreading, w merous fascicled z 
often fo m ‘prostrate mats.—Open moist ground, ds and barrens, um 
provinces, Ga. t , Minn., and Me.— e£.) 
70. P. albemarlense Ashe. Plant PA stem 25-45 em. tall: bd 
blades Paste: as well as lon a8- d: n the upper surface: panicle 3-5 
long, axis puberulent: spikele s 14 mm. long. Autumnal phase freely 
ee as sandy woods a dunes, Coastal Plain and New En ngland 
Coast N. C. to Minn. and Mass. and Great Lake Lowland, N Ind 
71. P. meridionale Ashe. Stem very slender, 15—40 c o E» 1.5-4 
em. long, the axis appressed-pubescent: spikelets about: 13 long. Au- 
tumnal phase erect or nearly so, not bushy. [P. L d Ashe] Sandy soil, 
sterile woods, and bogs, various provinces, Ga. to Wis. and R. I 
72. P. Huachucae dud Stem stiffly upright, light- pria dee papil- 
lose- ld 20—60 em. tall, the nodes bearded: (ta and more slender, 
brighter-green an js den pubescent: leaf-blades ved "thin, spre adas i the 
upper surface sparsely short-pilose, or with copious long hairs near the base, 
the lower surface pubescent and with a satiny luster in P. Huachucae silvicola. 
P. lanuginosum (F1. SE. U. 8.)]— Fla. to Tex., Nebr., and Me.) : leaf-sheaths 
sce lades ng, iously 
short-pilose, the pd m pubeseent: panicle 4—6 cm. long, the Pr piloso: 
spikelets about . long. Autumnal phase stiffly erect or ascending, t 
branches fasci cled. IP. u n "CHE SE. U. S. ree and Bs 
ounds, various provinces, N. C. to Calif., S. D., and 
73. pd Mr ep Nash. Stem 25—45 cm. tall, ue or ascending: panicle 
4-8 c Ty ng dires rather stiffly ase endin ing or spreading: T 
abou a ng. tumnal phase finally ei A forming a the 
leaf- nis pe much ed [P. atlanticum Nash P. xanthospermum ; Scriba. 
& Mohr]—Dry sandy or ci soil woods, and Sind ds various provinces, 
Fla. to Tex., Minn., and Mass.—(C. 4.) 
74. P. pseudopubescens Nash. Resembling P. villosissimum: leaf-blades gla- 
brous on upper surface along center or all over: spikelets about 2.3 mm. long. 
Autumnal phase stiffly spreading.—Sandy woods and pinelands, Coastal Plain 
and adj. provinces, Fla. to Miss., Ill., and Conn.—(Mez.) 
75. P. ovale Ell. Stem 20-50 cm. tall, relatively stout, the lower portion and 
the leaf-sheaths din pilos e with ascending or appressed hairs: blades nearly 
glabrous on upper surfa ee panicle 5-9 em. long. Autumnal phase spreading- 
inter blades v 
bent, the sum 
conspicuously ciliate. . ciluferum Nash|—Dry sandy woods and 
a, Coastal Plain, Fla. to Tex. and N. C.—Plant donec tufted. 
76. P. wilmingtonense Ashe. Stem 20-40 cm. tall, pilose with soft ascending 
hairs, = nodes pilose: leaf-sheaths villous like the stems: blades rather stiff, 
ascen ing, cm. long, glabrous on the upper surface, softly pubescent to 
nearly glabrous beneath: panicle 5-8 cm. long. Autumnal phase spreading, the 
branches crowded, the reduced blades involute- noc —-Sandy woods, Coastal 
Plain, Ala. to N. C. 
77. P. malacon Nash. Stem erect or stiffly spreading, 30—50 cm. tall, pubes- 
cent with Pigeon. hairs like the leaf-sheaths: blades stiffly ascending, 4—12 
em. long, m. wide, sharply acuminate, puberulent or glabrous above, 
