Arundinaria] CXII. GEAMINEiE 665- 



B. Mowering culms leafless, transverse veins not conspicuous. 



7. A. falcata, Nees; Brandis in Ind. Eor. xii. 206; Gramble t. 11, 12; 

 Collett Simla PI . 634, £.g. 199. Vern. Rlngcil, Hind. ; Go Ningal, Jauns. 

 Erect, densely tufted, more or less gregarious, flowers irregularly,^ at times, 

 gregariously over large areas, while a few clumps may be found in flower 

 almost every year, fl. stems leafless. Culms slender, 6-10 ft. high, often 

 glaucous with a waxy covering, rims of sheath-nodes swollen, pubescent or 

 velvety, in ternodes 6-12 in. long, walls thin. Culm-sheaths thinly membranous,, 

 as long as or longer than internodes, gradually narrowed from the middle to a 

 narrow truncate tip, blade subulate, ^-2 in. long, L. thin, 3-5 by \-\ in.,, 

 n. 36-45 on \ in., transv. veins obscure! Spikelets |~| in. long, some sessile,, 

 others on long slender pedicels, in long densely-whorled racemiform panicles, 

 each with 1-3 fertile and one terminal sterile fl., style short, stigmas 2, long, 

 plumose. Caryopsis \ in. long. 



North-West Himalaya. Olmmba to Nepal, 4-7,500 ft, often as underwood in forests, 

 of Quercus incana, Y\. May-Oct. 8. A. KHasiana, Munro ; Gamble t. 13. Khasi hills, 

 5-6,000 ft. (Namlang). Similar to 7, but stems stronger and harder, 1. broader, trans- 

 verse veinlets otten faintly visible, n. 27-42 on i in., inflorescence more dense. 9. A. 

 intermedia, Munro ; Gamble, t. 14. Vern. Titi Nigala^ Nep. ; Parmiok, Lepoha. Sikkim 

 lower hills to 7,000 ft. Erect, tufted, gregarious, culms 8-12 ft. high, internodes 5-10 in. 

 long, culm-sbeaths as long as internodes, 1. 3-5 by J-| in., n. 27-36 on J in. (24 in 

 specimens cnlt. at Kew, 1. -xt i^- wide), transverse veins faintly visible, leaf-sheatbs. 

 prominently striate, terminating in falcate auricles with numerous long cilia. PL 

 stems leafless, spikelets ^-1 in. long in racemes varying in length and often compound, 

 crowded in compact lialf-wborls, each spikelet with 3-4 fertile fl. 10. A. Hookeriana^ 

 Munro; Gamble, t. 15. "Vern. Singliani, Nep.; Prong, Praong, Lepcha. Sikkim and 

 West Bhutan 4-7,000 ft. Culms 12-80 ft., glaucous, with whitish scurf when young, 

 internodes 8-12 in. long, 1-1^^ in. diam., culm-sheaths 12-24, blade 3-6 in. long. L. 

 6-12 by ^-1^ in., n. 21-24 on i in., transv. veins just visible. Fl. stems leafless, 

 spikelets \ in. long with 1 fertile fl. Caryopsis jlj in. long. PI. in Sikkim and British 

 Bhutan 1848, 1885, 1892, and 1903. 



II. Erect, a ring of thorns at the nodes, bracts of inflorescence small,, 

 transverse veins prominent. 



11. A. GriffitMana, Munro ; Gamble t. 9. British Bhutan. Khasi and Jaintia bills. 

 (Khnap), Chin hills, Upper Burma. Tufted, gregarious, culms 10-30 ft., internodes 

 6-9 in. long, l-lj in. diam., thorns short, stout, conical. Culm-sheaths as long as. 

 internodes, coriaceous, hairy outside, a thick belt of long soft tawny hairs at the 

 base. L. 4-5 by J-| in., n. 21-27 on i in. Panicle large, terminal, leafy, branches 

 in the axils of sheathing bracts, spikelets 1-li in. long on slender peduncles, fl. 4-6, 

 rather distant, glumes mucronate. Pound in fl. at Moflong 1835 (Griffith). 12. A. 

 caUosa, Munro; Gamble t. 10. Daphla and Khasi hills (Uskong, Uspar, Khasi). 

 Similar to 11, culm-sheaths thin, striate, glabrous. L. 8-9 by f-lj in., n. 21-24 on 

 J in. Panicles axillary, spikelets 2-8 in. long. Pound in fl. at Shillong 1885 (C. B. 

 Clarke). To this I am disposed to refer a thorny Bamboo sent from the Kala Naga 

 hills, Manipiir, above 4,000 ft., by Mr. Inanada Charan Sen. Culms m thin clumps. 

 15-20 ft., internodes 7-9 in., diam. 1 in., thorns i-1 in. long. Culm-sheaths as long as 

 internodes, very thin, almost hyaline, ribbed, transverse veins prominent, also on 

 blade, blade narrow, 2 in. long. L. 8-12 by l-lj in., n. 18 on | in. 13. A. armata, 



Possibly of this group: 14. A. Pantlingii, Gamble t. 118. British Bhutan 11,000 ft. 

 (in fl. 1895). Similar to 11, but doubtfully spinescent. L. 5-7 by J-J in., n. 27-36 on 

 I in. Spikelets 6-10-fld., 1-2 in. long, on long slender peduncles, 



III. Erect, unarmed, bracts of inflorescence large, sheathing. 



15. A. spathiflora, Trinius ; Brandis in Ind. For. xii. 206 ; Gamble, t. 16. 

 Syn. ThamnocalamuB spatJiiflorus, Munro; Brandis F. Fl. 563. Vern. 

 Ringalj Nagal^ Hind. ; J)eo Ningal^ Jauns. 



Erect, densely tufted, gregarious, fl. periodically, probably in intervals of 

 10 years (Nepal 1821, Wallich ; Jannsar 1881 and 1882, Brandis, Eisher ; 

 Deoban 1892 and Kedarkanta 1893, Gamble). Culms 20-30, sometimes. 



