Bambusa. | GRAMINES. 551 
Mouth of leaf-sheaths long-produced, the ligule as much produced 
and as long as the petiole . : : z - . B. affinis. 
+ uricles large, strongly fringed.— Unarmed 
bamboos, 
Shoot-sheaths green and striped, the appressed bristles brown ; 
ers purple or brown-purple; angles of inner palea white- 
ciliate . ‘ . ‘ ; ; fi “ ¢ . B. vulgaris. 
Shoot-sheaths white-powdered or almost pruinose, the appressed 
bristles scanty, brown ; anthers yellow ; angles of inner palea 
ciliate ‘ . F i ‘ . - ‘ j . B. tulda. 
Shoot-sheaths green and yellow, the appressed bristles white; an- 
rs purple; angles of inner palea quite smooth . 3 - B. polymorpha. 
Doubtful, flowers unknown ; leaves whitish-glaucous and pubescent 
beneath ; leaf-sheaths long and slenderly caudiculate . . B. villosula. 
OO Stigmas purple.— Spiny bamboos 
Shoot-sheaths glossy-smooth, purple to scarlet ; leaves small; angles 
f i tomentose-ciliate; anthers yellow . : . B. arundinacea, 
1. B. nana, Roxb.—Pa-lau-pinan-wa.—An evergreen tufted, 
dense, much-branched bamboo (6—10 + (?) +75—}), the stems glab- 
rous, green or coloured, the internodes about 4 ft. long or longer, 
slightly thickened at the joints; shoot-sheaths green or yellowish, 
striate, glabrous, minutely or not auricled, but spuriously continuous 
with the erect, ovate-lanceolate, acuminate, membranous, green im- 
perfect blade which is usually fringed with a few brown stiff hairs 
along its lower part, the ligule very narrow, entire ; leaves thin-char- 
eous, linear-lanceolate to lanceolate, acuminate, narrowed with a 
rounded or slightly tapering base in a very short petiole, rough- 
bordered, glabrous, whitish or glaucous beneath, lateral veins 3-4 on 
each side, faint; leaf-sheaths glossy, striate, shortly fringed on the 
minutely auricled or naked mouth ; spikelets 3-1 in, long, occasion- 
ally very elongate, 5- many-flowered, solitary or few together along 
the end-branchlets or at length forming a poor diffuse panicle ; 
florets nearly all hermaphrodite or very rarely the lowermost reduced 
an empty palea; rachille glabrous ; outer palea convolute-terete, 
smooth, rather acute, the inner one acute, deplanate on the back, 
with smooth angles; lodicules 3, longer than the ovary, entire ; 
filaments elongate, exserted ; anthers yellowish, with purplish streaks, 
pendulous ; ovary globular-pear-shaped, rough at the apex; style 
very short, persistent ; stigmas 3, pilose, white ; caryopsis elliptical, 
suleate, mucronulate. 
Has.—Rarely cultivated in and around Rangoon and elsewhere. 
2. B. affinis, Munr—TZaik-wa.—An evergreen low, tufted, 
bushy bamboo (15—20+0+3—#), the stems green and whitish 
with a narrow intensely green polished appendage at the some- 
what produced obliquely truncate mouth, the ligule rounded and 
