o8 POACEAE 
8. P. caespitosum Flügge. pes 30-60 cm. tall: ae sheaths allies ; blades 
3-7 mm. ne glabrous, fiat, usually subi bass rying, narrowed at both 
ends: s 2—6: spikelet dicium appressed- E cc. ' Pinel ands, Ever- 
dee. aaa ea S pen. Fla. and the Keys. (WW. I.) 
. laxum e pM: 60-100 em. tall: leaf-sheaths glabrous, a few long 
white hairs at the mouth: blades folded or wed racemes few to several, 
mostly o Din spikelets iri 1.8-2 mm. long, pubescent or 
rarely glabro [P. elatum (Fl. SE. U. S. )]—Rocky hammocks, Key West, 
Fla.—(W. L) 
. P. longepedunculatum Le ET Stem spreading, 25—80 em. tall: leaf- 
shoots E ciliate: blades 4—10 mm. wide, the margin ciliate: racemes 
1 or 2, 2-8 em. long, slender, usually curved: spike elets 1.5 mm. lon P. ken- 
eae Nash]— —Pinelands, fields, and woods, Coastal Plain and ‘rarely adj. 
provinces, Fla. to Miss. and K y. 
ne P bd bus Stem 40-100 cm. tall: leaf-sheaths villous; blades 3-10 
wide: mes usually single, 7-11 cm. long: spikelets glandular- pubescent. 
TP. P e Nash|—Pinelands and fields, Coastal Plain, Fla. to Tex. 
and N. Y. 
12. P. setaceum Michx. Stem 20-70 em. tall: leaf-sheaths villous; oe 
linear, 2.5-5 mm. wide: racemes usually single: spikelets glabrous or sparsely 
glandular- pubescent. A, fields, pinelands, and woods, various dud. 
Fla. to Tex. and N. Y. 
13. P. rigidifolium Nash. iip erect, 30—80 cm. tall: lower bn sheaths vil- 
lous; blades erect or ascending: racemes usually ddl. 6—13 em. tall: spike s 
about 2 mm. long, glabrous or a —Pinelands, Coastal Plain, Fla. 
Tex.—(W. I.) 
4. P.propinquum Nash. Stem 2 n E bs oe E poe 
labrous or sparingly eras 7-20 m 3, ong: 
spikelets glabrous, about 2 m E imr in EM ao D E “thickets, 
sandy soil, Coastal Plain, Fla. ee Tex 
15. P. ciliatifolium Michx. Stem 40-80 cm. tall: leaf-blades 6-15 mm ; 
racemes 1l or 2, 5-11 em. long: d pid glabrous or pubescent. [P. b ied 
phyllum Nash P. Chapmanii Na ae ae Egg ertit Nash P. epile Nash P. latifolium 
Le Conte |—Fields, g pinelands, h iin woods, and swamps, Coastal Plain 
and adj. provinces, Fla. to Tex. por ES J.— (RF. I. ) 
pubescens Muhl. Stem 40-80 cm. tall, usually pilose below the ns 
2 em. lon 
PD qu du racemes usually single, 1 ng: spikelets about 2 m 
long, glabro [P. Muhlenbergii Nas h] Fields, acid swamps, and n es 
Coastal Plain p rarely adj. provinees, Fla. to Tex. and Vt. 
17. P. supinum Bose. Stem 20-60 cm. tall: leaf-blades 10—20 mm. 
racemes usually 2 s 3, 4—10 em. Ln nid about 2 mm. long, g landular- 
pubescent, or som mes glabro [P. dasyphyllwm El.]—Sandy soil, pine- 
lands, fields, hae p swamps, “Coastal plant Fla. to La., Tenn., and N. C. 
P. monostachyum Vasey. Glabrous: stem strict, 60-120 cm. tall: Dd 
blades elongate, terete: racemes mostly 10-30 cm. long: spikelets 3 mm. long. 
[P n E n Nash]—Wet soil, prairies and marshes, Coastal Plain, S Ed 
