POACEAE 81 
pubescent. Autumnal phase more freely branched than in P. latifolium, 
sometimes topheavy-reclining. [P. Porterianum Nas ni LC bottoms, and 
hillsides, various provinces, Fla. to Tex., Okla., and Mass 
116. P. hemitomon Schult. Plant aquatic or semiaquatic, with extensively 
creeping rootstocks, often producing numerous sterile shoots with densely ip 
sheaths and strigose blades: stem 50—150 em. tall, gla ded o blades ascend- 
ing or spreading, em. long, 7-15 m wide, cabrous on upper surface 
glabrous beneath: Ps 15-30 cm. png the Beaches sa r2or3i 
a an 2—10 em. long: ibas about 2.5 mm. long, eee ng acute, gla- 
bro P. dig itarioides Carpenter | — (MAIDEN-CANE.)—Stream-banks, ditches, 
bonds, and ies often in the water, Coastal Plain, Fla. to Tex. and N. J. 
7. gymnocarpon ux Plant denen with a succulent decumbent or 
ereeping base as much a m. long: stem erect or ascending, 60—100 cm. tall, 
the nodes often deed: leaf-blades linear-lanceolate, 20-35 cm. long, 
15-25 mm. wide, flat, cordate: panicle 20-40 em. long, with several solitary 
or fascicled racemes along the main axis, Lene 8-12 em. long: spike el ets d 
pedicelled, appressed, 6—7 mm. long, glabrous, the glumes acumin [Phan 
pyrum abt Nas sh ]—Ditehes, unde. 'and muddy banks, N Plain, 
Fla. to Tex. and Ga. 
LASIACIS A. Hitche. Large branching perennials, with woody culms 
often straggling several feet high into shrubs or trees, the leaf-blades firm, 
flat, usually lanceolate and narrowed into a petiole, the spikelets in an open 
panicle. Spikelets subglobose, glabrous, placed obliquely on their pedicels; 
- g mewhat infla s seen code, usually not over one-third the length 
the spikelet, several nerved; second glume and sterile lemma about sae 
Bu abruptly apiculate, papery-chartaceous, shinin Pedo e ed, the lem 
enclosing a membranaceous palea and sometimes a Siem nate flower; fertile 
lemma Ln bony-indurate, obovoid, obtuse, this and us palea bearing at 
the apex in a slight crateriform depression 
a tuft of woolly hairs, the palea concave be- 
low, gibbous above, the apex often free at 
aturity.—Twenty species, natives of tropi- 
cal America. 
1. L. divaricata (L.) A. Hitehe. Plant 
apis throughout except the margin of 
eaths: stem branching, shrubby or 
a. straggling over bushes or up into 
t B 2 he ste 
strong, as much as 6 m n diameter, the 
main branches often o ed, the vigorous 
a secondary shoo s often strongly di- / 
cate or zigzag: po Perg narrowly 
in te, 5-12 em. long, 5-15 mm. wide, 
on vigorous Shoots much bans paniele ovate, 5—20 em. E I pod 
4 mm. long, commonly black at matur urity. [Panicum dwaricatum L. P. 
folium £ Fl. SE. U. 8.)]—(SMALL-CANE. WILD-BAMBOO. A S Fla. 
— (W. I., Mex., C. A., S. A.) 
29. SACCIOLEPIS Nash. Peorennisls of wet soil; stems ipei sn 
with elongate spike- -like panicles. Spikelets oblong-conic; first glu 
second glume broad, inflated-saccate, strongly many-nerved; un "inus 
