80 POACEAE 
Moist ground, wet acid woods, and pinelands, Coastal Plain, Fla. to Tex. 
nd N. J. 
cryptanthum Ashe. Stem erect, 80-100 cm. E ceps except the 
abro 1 
usually bearded nodes: leaf-blades 7-9 mm. wide, gla panic em 
long: spikelets 2.2-2.4 long, labrous Or pee poe the second 
glume and sterile mma pointed beyond the fruit. Au umnal phase erect, 
und, 
le 
sparingly branched at the middle and upper nodes. —Low swampy gro 
Coastal us Fla. to Tex. and N. J. 
p 
branched from the mi iddl upper nodes.—Sandy d dunes, a 
hammoeks, Coastal Plain d ps Blue Ridge, Fla. to Miss. and Va. 
109. P. equilaterale Seribn. Stem ad ped 25-70 em. tall: leaf-blades 
firm, widely spreading, 6—17 cm. long, 6— wide, very scabrous, often 
eiliate at base: pa anicle d em. long: piel elet: S 33 mm. long. Autumnal 
phase ereet or leaning, branching from the upper and middle nodes. [P. ird 
folium Nash]—Pinelands, . ‘aan and dunes, Coastal Plain, Fla. to S. C. 
110. P. Ashei Pearson. Stem usually purplish, erect, 25-50 cm. tall: le e 
sheaths puberulent: blades 4-8 em. long, 5-10 mm. wide: panicle 5-8 c 
ong utumnal phase divergently branching from the middle and upper 
nodes.—Dry sterile woods, rocky places, and sand hills, various provinces, 
Fla. to Miss., Mich., and 
mmutatum Schult. Stem 40-75 em. ane leaf- pees eerie or 
12-25 m 
112. P. Joorii Vasey. Stem 20-55 cm. tall, spreading or ascending fro 
2m ed at least the lower part pur ple: panicle 5—9 em. long: spikelets 
mm. long. Autumnal phase widely spr reading, bearing more or less divari- 
im veu M from all the nodes, the ultimate branchlets in. dense fascicles. 
[P. manatense Nash]—Low woods, ammocks, and cypress-swamps, Coastal 
Plain, Fla. to Tex. and Va.— Nd I., Mez.) 
ranch r 
ened branchlets inclosing wholly or partially the secondary panicles.—Moist 
ground, woods and thickets, v RON provinees, Fla. to Tex., Kans., and Me. 
114. P. latifolium L. Stem erect, 45-100 em. tall: qn apes 8-18 em 
b ike 
branehing from the middle nodes, the branches er rowded and sprea 
macrocarpon Le Co 
ma 1 nte|—Rocky or sandy woods, various provinces N of Coastal 
Plain, N. C. to Kan., Minn., and Me. 
115. P. Boscii Poir. Stem 40-70 e m. tall, erect or ascending, glabrous or 
minutely puberulent: leaf-sheaths Pie or nearly so (downy-villous, the 
blades a beneath in P. Boscii molle=P. ded bis Nash—Fla. to La., 
rk., and Conn.): blades 7-12 em. long, 1.5-3 em. wide: spikelets papillose- 
