POACEAE 39 
5. IMPERATA Cyr. Slender erect perennials with terminal narrow 
woolly panicles. Spikelets all alike, awnless, in pairs, unequally pedicellate 
on a slender continuous rachis, surrounded by long silky hairs: glumes a 
equal, membranaceous: sterile lemma, fertile lemma, and palea thin 
hyaline.—Five s ee in eid all tropica \ 
and subtropical regio 
1. I. brasiliensis Trin. Stem 0.5-1 m. tall, 
from scaly rootstocks: leaf-blades mostly 
basal, 3-8 mm. wide, the stem- grs Dc 
the uppermost leaf reduced arl 
bladeless sheath: panicle UN d pe 
over 10 = oe ee 2 ae BLADY-GRASS 
SILVER-P E.)—-Pinelands, prairies, sand- 
dunes and. Everglades, 5 Fla.—(W. I., 
Me A., S. A.) — ear.— Conspieuous 
on account of te anh narrow silvery 
plume-like a ue The plants are 
often tufted. | M 
6. MISCANTHUS Anderss. Robust perennials with usually flat leaf- 
blades and terminal panicles of aggregate slender racemes. Spikelets all per- 
fect, in pairs, End pedicellate along a continuous rachis: glumes mem- 
branous: lemma hyaline, 2-toothed, with a 
slender, somewhat panel a and flexuous 
awn.—Six species, natives of Asia. 
. M. sinensis Anderss. Stems 1-2 m. pem 
leaf-blades 80 em. long or less, 1-1.5 e 
ee : 
sia.—Spr.—fal do uently es E 
cmo] Sometimes with variegated lea 
7. SACCHAR Tall enu. with many-jointed stems, flat leaf- 
blades, and usually large loose silky terminal panicles. Spikelets in pairs, 
one pn the other pedicellate, both per- 
eet, wnless, in slender racemes, the rachis 
den lating. Glumes Mid membranous, 
or indurate at base: lemmas hyaline, the 
ertile sometimes wanting. dere UN 
most abundant in the tropieal regions of the 
Old World 
narum L. Stem tall and leafy, 
A 
e- 
cumbent and rooting at e age leaf--. 
ades r 1 m. long, 6 ¢ 
less: panicle pO Jike, mostly 60 em. long 
or more, loose.— (SUGAR- CANE.)— Old fields 
