Bamhum] CXII. GEAMINEiE 669 



long, 1-lJ in. diam., walls tliin. Culm-sheaths 5-6 in. long, top but little narrower 

 than the base, blade from a broadly cordate auriculate and almost amplexicaul base 

 narrowed into a subulate point, middle portion thick, ribbed, lanceolate, outer mem- 

 branous, wing-like. L. pale, 4-9 by 1-1 J in., ending in a subulate hairy point, n. 

 18-21 on \ in. Spikelets partly short, sterile, partly long fertile, in distant often 

 nearly globose heads, on long spikes, arranged in leafy panicles. Two to three fertile 

 fl. in the middle with 1-4 empty glumes at base and 1-2 imperfect fl. at the apex. 

 Keels of palea with minute cilia, ovary attenuated into a short style. L. resemble 

 Melocanna hamhusoides. but culm-sheaths quite diiferent. Has been found in fl. 1850 

 tind 1885. 



7, B. pol3miorplia, Munro ; Gamble, t. 34. Yern. Kyathawng-wa^ Burm. Pegu Yoma 

 abundant above 500 ft. Rare in Martaban. Tufted, gregarious, culms 60-80 ft. high, 

 erect, lower part naked, upper part gracefully bent, the leaf-bearing branches in half- 

 whorls, internodes 12-30 in. long, 3-5 in. diam., walls thin, rings of rootlets at the 

 lower nodes. Culm-sheaths about \ the length of pint, blade concave, mucronate, 

 extending below into elongate falcate auricles, fringed by strong pale-brown bristles. 

 L. 4-6 by \~\ in., n. 40-45 on J in. Spikelets sessile, clustered, J in. long, empty 

 glumes several, acuminate, often with a distinct blade separated from the sheath by a 

 hairy callus, fertile fl. 3, with a terminal imperfect fl. on a long slender rachilla, palea 

 not or very slightly ciliate along the keels, anthers emarginate. style short. Flowers 

 at long intervals. Coll. in fi. by Dr. M'Clelland in Pegu in 1854. In 1856, '57, '58 

 I found it in leaf in the Pegu Yoma. In 1859 it fid. on the west side of the Pegu 

 Toma in its southern and 1860 in its northern portion. Gamble in Ann. Calc. Gard. 

 yii. 37 states that iiowering specimens were collected by me in the Zamayee forestb 

 in 1862 and by Kurz in the Thaukyeghat foi-ests in 1871, and (in Nature, vol. 70, 

 p. 423) that since then flowers have been once reported from Bassein. To this Gamble, 

 Bambuseae, 37, refers Betua, Beng., and doubtfully Jai^ Beng., both from Sylhet. Betua 

 was coll. in il. Dec, 1889, in Silhet. 8. Specimens (ii. and seedlings) sent by Troup 

 from the Bawben forests, Pegu {Kyatliaungtu-Thaiktu^ Burm., similar to B. polymor- 

 pha and TuJda), come near to 7. Tufted, 50-60 ft-, internodes 1^-2 ft. long, densely 

 clothed with white silky hairs, walls I m. thick, often nearly solid, nodes with a ring 

 of rootlets like B. Tulda. Spikelets polished 3-4-fld. purple at the apex, palea not or 

 very slightly ciliate at the keels, lodicules broad, base fleshy, anthers purple, emar- 

 ginate, ovary obovoid, hairy, stigmas 3, long, plumose, sessile or nearly so. The 

 seedlings resemble those of B. Tulda, but the n. are closer together, 39-45 on ^ in. 



(6) Culm-sheaths witb small auricles or without auricles. 



. 9. B. affinis, Munro. Vern. Thishe, Burm. ; Wahue^ ICar. In an old Taungya 



between Wimpa and the Bithoko range, Yunzalin (D.B. May, 1859). Tufted and 



somewhat scrambling, internodes under 2 in. diam. L. 4-8 by |-1 in., n. 33 on J in., 



sheaths ribbed, perfectly glabrous, loose, baggy, not tightly enclosing the internode. 



Spikelets sessile, coriaceous, polished, 1 in. long, supported by large bracts, in distant 



<jlusters on long spikes, forming terminal leafy panicles. Empty glumes 4-8, not 



-ciliate, the lowest f in. long, often consisting of a distinct sheath and blade. Some 



male and a few fertile fl., palea much smaller than flowering glume, with very long 



cilia in the upper half of keel, 7 nerves between keels. Ovary obovoid, glumes in the 



lower portion. Kurz P. PI. ii. 551 states that B. affinis, Munro grows in the Eng 



forest of Martaban, east of the Sitang river. Gamble, Bambusese, 39, t. 36, identifies 



with this a low bush growing in the Calcutta Botanic Garden on the edge of the 



muddy river bank. The specimens of this in Herb. Kew, however, have entirely 



diiferent 1., IJ in. wide, n. 18-21 on J in., with a different structure. The l.-sheaths 



are sharply keeled and tightly appressed to the internode, and the ligule is large. 10. 



B. pallida, Munro ; Gamble t. 35. "Vern. Pshi, Lepcha ; BijH, WaJhthai^ Makal, Ass. ; 



TJsken^ Seshien, sJchen, Khasi ; Gyawa^ Burm. ; Maipyu^ Kachin. Indigenous in 



Sikkim, Bhutan, up to 6,000 ft., the Khasi, Jaintia, and Naga hills. Bhamo district, 



in evergreen forest. Cultivated in Assam, the Khasi hills, and in the plains of 



Eastern Bengal. Tufted, culms 40-60 ft. high, olive-green, the young shoots covered 



with white powder, internodes 18-30 in. long, 2-3 in. diam. Culm-sheaths 7-12 in. 



long, blade as broad as, and usually longer than sheath. L. 4-8 in. long, n. 38-42 on 



J in. Spikelets pale, 1-lJ in. long, fertile fl. 3-8, at the end 3-5 imperfect fl. gradually 



decreasing in size. Ovary gradually narrowed into a short hairy style. Gamble, 



Bambuse^ 38, identifies with this Dmdrocalamus criticus, Kurz, Kambalu Taung, 



Pegu Yoma, 3,000 ft. Gyawa, Burm., is also applied to Teinostachyum Dullooa, 



Gamble 11. B. nana, Boxb. ; Gamble t. 38. A native of Japan, cultivated in India 



and Burma, often as a hedge plant. Pulopinang wa, Burm. Densely tufted, culms 



6-10 ft. high, internodes 8-15 in. long, J-1 in. diam., culm-sbeaths glabrous, 4-6 in. 



long, green first, afterwards yellow, blade 2-3 in. long, hairy beneath. L. 2-4 by i in., 



n. 45-54 on J in. Spikelets sessile, distichous, i-lj in. long, many-fld., in a poor 



