GRAMINEZ. (GRASS FAMILY.) 575 
oblong-obovate acute spikelets near the summit; glumes papillose-hispid, the 
upper one 5-nerved, longer than the pointed granular-roughened perfect flower ; 
the lower minute, obtuse. — Dry soil, Florida to South Carolina. — Culms 1°- 
2° long. Spikelets 13" long. - 
%* * * Spikelets single, on a spreading pedicel, disposed in open panicles : sterile flower 
consisting of two unequal palec, neutral (except No. 17): perennials: culms at 
length much branched. 
17. P. latifolium, L. Culms smooth, erect; leaves ovate-lanccolate, 
mostly smooth, the sheaths, especially at the joints, villous; panicle nearly sim- 
ple; spikelets large (2" long), obovate; glumes pubescent, obtuse, the upper 
2-3 times longer than the lower one; sterile flower 3-androus. — Dry rich soil, 
Florida, and northward. May. — Culms 1°-1}° high. — and panicles 
3! — 4! long, the latter exserted. à 
18. P. clandestinum, L. Culms rigid (1° high), branched, naked at 
the joints; leaves lanceolate, acuminate, the sheaths papillose-hirsute ; panicles 
small, lateral and terminal, more or less included in the sheaths ; spikelets ob- 
long, pubescent (13 long); lower glume half the length of the 7-nerved upper 
one. — Dry sterile soil, North Carolina, and northward. Sept. |— Varies 
with the sheaths a or ss ree = the eid ps. some- 
times exserted. - = ane 
19. P. scoparia L Hairy or woolly all over, ae ue. the. uppet res 
face of the somewhat rigid lanceolate leaves ; culms stout (19 - 13? high), mostly 
simple; panicle terminal, exserted ; spikelets obovate (13^ long), obtuse, pubes- 
cent; upper glume 9-nerved, three times the length of the lower one; sterile 
flower neutral — Open woods and margins of fields, in dry soil, Florida to. 
North Carolina. May. 
90. P. pauciflorum, Ell. “Panicle expanding, few-flowered; flowers 
very large; leaves narrow-lanceolate, ciliate at the base ; sheaths hairy." £//.— 
In close damp soils, Georgia, Elliott. May. — Culm 12!-18! high, roughish 
and branching at the joints. Leaves 3'— 4' long, 3” — 4" wide, smooth above. 
Spikelets oval, the lower glume very small. Resembles P. Sm duce in ion 
and P. villosum somewhat in habit. (*) 3 
21. P. divaricatum, L. Shrubby, smooth; culms noting) with bius 
and spreading branches; leaves lanceolate, faintly nerved, deciduous from the 
persistent sheaths ; panicles small, simple, few-flowered, terminating the branches ; 
spikelets (2" long) obovate, tumid, nodding ; glumes smooth, many-nerved, and, 
like the lower palea of the sterile flower, tipped with a tuft of down ; palex of 
the sterile flower nearly equal. — South Florida, Dr. Blodgett. — Leaves us -9! 
long. Branches of the panicle short and diverging. 
22. P. viscidum, Ell. Soft-hairy or downy all over, except a narrow dap 
i below each j joint of the culm ; leaves lanceolate ; sheaths viscid ; pa w Sind ^ 
| pires lebe LN D: i 
