8 ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA. 
leaf-sheaths glabrous, striate, paleaceous, ending in a minutely ciliate callus, and furnished 
with a short auricle and a few (2 to 4) long pale bristles; ligule short. Inflorescence a 
terminal short leafy panicle with semi-verticilate, wiry branchlets; pedicels short, often 
obeuneate; rachis. angular, glandular in the axils. Spikelets "5 in. long, 3-flowered, 
glabrous or slightly pubescent, joints of the rachilla scabrous at the tip; empty glumes 2, 
the lower smaller, 5- to 7-nerved, ovate, mucronate; flowering glume longer but similar; 
palea bicuspidate, hirsute, ciliate at tip, keels not ciliate otherwise. Lodicules З, ovate, 
acute, ciliate, 3-nerved. Stamens not exserted, anthers bifid at apex. Ovary ovoid, 
glabrous, produced into.a short style which at once separates into two long purple 
stigmas beautifully plumose within. Munro in Trans, Linn, Soc. xxvi. 24; Beddome Flora 
Sylv. сеххх. C. P. No. 1. i | 
Ceylon at 60,000 to 8,000 feet, collected in the Central Provinces by Thwaites, 
also by Drs. Maxwell, Wight and G. Thomson. | | 
This plant is characterized by the small pointed leaves, short spikelets, long glumes, 
and slightly ciliate palea. Thwaites says it is used in Newera Ellia as а fodder for 
horses. 
Pirate Хо. 6.—Arundinaria debilis, Thw. 1, leaf-branch; 2, flowering branch 
—of natural size; 3, spikelet; 4 & 5, empty glumes; 6, flowering glume; 7, palea; 8, 
lodicule; 9, lodicules with stamens and stigmas; 10, anther; 11, ovary and stigmas; 
12, transverse venation of leaf—en/arged. (All from Thwaites’ specimens C, P. 1.) 
7. ARUNDINARIA DENSIFOLIA, Munro in Trans. Linn. Soc. xxvi. 32. 
A small, densely gregarious shrub, 6 in. to 3 ft. high, with stiff,. strong, densely 
leafy branches arising from a thick rhizome covered with imbricating scales. Culms 
up to '3 in. in diameter, smooth; nodes not prominent; internodes 15 to 3 in. long, 
walls rather thick. Culm-sheaths 1 in. or more long, striate, hirsute, slightly attenuate 
to a truncate top bearing very small pointed auricles; imperfect blade short, ovate, rounded 
at base; branchlets fastigiate, short, 5 to 8 from each node. Leaves densely imbricate, 
thick, almost sessile, lanceolate, acute; rounded or cordate at the base, tapering upwards 
gradually into a sharply acuminate glabrous point, 1 to 1:5 in. long by “2 to "8 іп, 
broad, the edges broadly cartilaginous, finely spinulose-serrate; main vein prominent, thick, 
shining, secondary veins 1 to 2, inconspicuous, intermediate 4 to 5, transverse veinlets 
very numerous and regular; Jea/-sheaths striate and with whitish stiff hairs above, ciliate 
on the edges, slightly so at the top; ligule short, rounded, hairy. Inflorescence a dense 
panicle of leafy branchlets, bearing racemes with 5 to 6 spikelets, the rachis angled, 
strigosely hairy. Spikelets “4 to “5 in. long, 1-flowered, with a terminal free rachilla. 
or rudimentary flower; empty glumes 2, the lower short, narrow, lanceolate, acu- 
minate, the midrib scabrous ; the upper similar but broader, 5-nerved; flowering glume 
similar to but larger than the upper empty glume, 5-nerved, long mucronate, midrib 
conspicuous, scabrous; palea 2-keeled, scabrous on the keels, faintly l-veined on either 
side, bimucronate; rachilla between empty and flowering glume rounded, glabrous. | 
Lodicules obovate, obtuse, white, shortly fimbriate, faintly 3—5-nerved. Stamens not 
exserted ; anthers long, blunt, shortly apiculate. Ovary elliptic, glab 
branching into 2 feathery stigmas. Caryopsis mot веет. . 
South India and Ceylon: collected by Watson (No. 25); by С. Thomson in 
marshes on. Pedrotallagalla; by Dr. Maxwell; and by Trimen on Horton plains at 
rous; style short, soon 
