394 OLxxiii. GEAMiNE^. {Bambusem, Gamble.) [^Bambusa. 



South Andaman Islds., Kurz. 



Stems tufted, 20-30 ft. by 3-i in. illam., green, glossy, nodes not thickened ; 

 internodes li-2 ft., walls thin ; branches 1-4 from each node, leafy below, flowering 

 above. Leaves 4r-7 by J-lj in., tip twisted scabrous, glabrous and pale beneath, 

 nerves 5-6. Brads of infl., narrow, truncate or acuminate, smooth, rachis pubescent, 

 joints about 1 in. Falea membranous, acuminate, dorsally 3-nerved. Lodimles if 

 present lanceolate, ciliate. Anthers purple, cells unequal. Ovary narrowed into the 

 style. Grain obliquely oblong, smooth, beak long stifl'. — Stem-sheaths not known. 

 Eemarkable for the narrow membranous acuminate palea. 



Sect. V. Subscandeat, not spinous. Spikelets cylindrio, fl. gl. solitary. 



16. B. Griffithiana, Munro in Trans. Linn. Soc. xxvi. (1868) 99 ; 

 leaves large lanceolate glaucous beneath base unequal cuneate tessel- 

 laie by pellucid glands, sbeath glabrous keeled callus narrow, auricles falcate 

 reflexed strongly bristly, lignle elongate oiliate, spikelets about | in. in 

 distant heads on a hollow soft rachis ovate-lanceolate acute, empty gls. 2 

 ovate acute many-nerved, tig. gl. larger mucrouate, palea membranous 

 acute keels glabrous, anthers obtuse tip 2-fid, ovary ovoid glabrous. 

 Gamhh Bamh. Brit. Ind. 49, t. 45. Dendrnoalamus G-riffithianus, K'm-z 

 For. Fl. Brit. Burm. ii. 562. — Bambusa, Griff. Journ. 90. 



Uppke Burma ; banks of Mogaung River, Griffith. 



Stems soft, slender, hollow. Leaves 1-lJ by 2-3 in., tip subulate, twisted, 

 scabrid, nerves 13-17, petiole ^ in., stout ; auricles of sheath up to f in., bristles long ; 

 ligule obtuse or triangular, often cleft. Panicle terminal, of spiciform branches 

 bearing heads at intervals of 1-4 in. Spikelets cylindric ; flg. gl. convolute ; rachilla 

 glabrous, clavate, much shorter than its imperfect terminal gl. ; palea many-nerved. 

 Lodicules 3, long-fimbriate, one much smaller. Stt/le very short, stigmas long, 

 plumose. 



17. B. Wrayi, Stapf in Eew Bulletin, 1893, 14, in Hook. Ic. PI. t. 

 2253 ; stems decurved, leaves linear-lanceolate narrowly acuminate, auricles 

 of sheath small, ligule short truncate bristles long, panicle large leafy, 

 spikelets in short bracteate spikes, within each bract is a keeled bracteole, 

 then 2 imperfect spikelets in the axils of lanceolate glabrous gls. each 

 subtended by a 2-keeled ciliate scale, fertile spikelet with ovate-lanceolate 

 acute many-nerved, gls. keels of palea rough or faintly-ciliate, anthers obtuse 

 glabrous, ovary ovoid glabrous. Oamhle Bamh. Brit. Ind. 50, t. 46. 



Malay PENINSULA; Perak, alt. 4500-5500 ft., Wray. 



Stems 40-60 ft., 1 in. diam., semiscandent, tips decurved to the ground, yellow, 

 glabrous, shining, 3rd or ith lower internodes up to 7 ft. Leaves 8-10 by 1 in., 

 glabrous, petiole short narrow, nerves 7-8 j sheath pale, glabrous, callus shining ; 

 hairs of ligule up to i in. Panicle large, leafy, clusters of spikelets at the nodes or 

 in spiciform branches, rachis smooth. Empty gl. convolute, rachilla as long as its 

 imperfect terminal gl. Lodicules narrow, minutely ciliate. Ovary narrowed into a 

 very short style, stigmas long, plumose. Grain oblong, beak cylindric. 



Sect. VI. Arborescent, spinous. 



18. B. Bluineana, Sohult. f. Syst. vii. 1343 ; stem-sheaths short, 

 leaves fascicled linear-lanceolate sheath appressed hairy, ligule fimbriate, 

 clusters of many imperfect and few perfect spikelets, perfect spikelets 

 l-li in. slender compressed, empty gls. 2-3 ovate acute 3-7-nerved, 

 flg. gl. ovate acuminate 7-8-nerved, palea broad obtuse concave keels 

 ciliate, anthers obtuse, ovary ovoid, style very short. Kunth JSnwm. 



