550 GRAMINES. | Arundinaria. 
base into a very short petiole, rigidly chartaceous, 4-5 in. long by 
4-4 broad, somewhat glaucescent beneath, with about 4 nerves at 
each side, conspicuously tesselate and (especially towards the apex) 
spinulose-rough along the cartilaginous margins; sheaths of the 
leaves channelled, glabrous, with a few stiff hairs at the outer corner 
of the truncate mouth; shoot-sheaths chartaceous, sparingly and 
minutely tawny-hispid, minutely pale ciliolate along the margins, 
minutely auricled at the narrowed naked mouth, the ligule narrow, 
iliolate ; spikelet teel-blue on the sunny side, long and slender 
(4-1 in.) -pedicelled, 14-1 in. long, very variable in the number of 
purple. 
Haz.—Frequent in the damp hill forests and in the stunted forests of the 
Nattoung hills, Martaban, east of Tounghoo, at 5,000 to 7,200 ft. elevation; 
also Ava, Kakhyen hills.—F]. March.—s.—SS.= 
BAMBUSA, Schreb. 
Spikelets 5- many- flowered, compressed, depressed or cylindrical, 
usually clustered and spiked, forming at length a gigantic leafless 
radical panicle. Florets distichous, the upper and lower ones incom- 
plete, or the lower replaced by a rudimentary spikelet or altogether 
empty. umes none or several and conform to the paleas, bw 
smaller. Rachille more or less abbreviate. Inner palea of the 
hermaphrodite floret 2-keeled on the deplanate or coneave back, 
usually somewhat shorter than the outer one. Lodicules 3 or fewer, 
or none. Stamens 6, the filaments long and free. Ovary naked, 
more or less alternately fascicled branches and usually rapidly oF 
slowly dying after flowering. 
© Stigmas white.— Unarmed bamboos. 
x Shoot-sheaths not or obscurely auricled at the mouth. 
Small bamboo ; leaves small, glabrous, whitish pruinous beneath . B, nana. 
X X Shoot-sheaths icuously auricled or the blade 
ent into an auricle-shape . 
+ Auricles polished and smooth, without fringes. 
