ANNALS OF THE ROYAL BOTANIC GARDEN, CALCUTTA.
1. Dinochloa Tjankorreh, Biise in PI. Jungk. 388.
An evergreen, lofty, scandent bamboo. Culms up to 100 ft. long, 1 in, or
more in diameter, zigzag-genicukte, green, glossy; nodes swollen, marked by tho coriaceous,
persistent bases of the fallen sheaths, those of branches often thorny; internodes
9 to 18 in. long, hairy in the tipper pai-t, walls thin; culm-sheaths loose, cylindrical,
gradually attenuate towards the mouth which is not auricled, sprinkled with minute
white fugacious bxistles, base leathery and persistent, upper margins somewhat waved;
impcrfcct blade ovate-lanceolate, acuminate, spi'eading or erect, minutely hispid above; Uijulc
rather broad, entii-e or slightly toothed. Leaves moderately large, 6 to 10 in. long, 1 to
1-0 in. broad, rather soft, lanceolate, acuminate, attenuate at tlie base into a very short
hairy petiole; point setaceous, slightly rough; smooth on both sm-faces, slightly scabrous on
the edges; main vein conspicuous, secondary veins 7 to 9 pairs, transverse veiulets conspicuous
owing to pellucid glands; leaf-sheaths glabrous when old, appressed-hairy when young,
striate, ending in a callus and a rounded mouth with long white stiif cilifc; ligula rather
broad, truncate, long-ciliatc. In florescence a large compound panicle of spicate, thin, wiry
branches; the rachis curved, smooth, striate, flattened on one side, marked at the nodes
by a ring formed by the bases of fallen bracts; clusters ve:y small, with few fertile
spikelets and many empty glumes. Spikelcts very small, at most -1 in. long, ovate, glossy,
brown, glabrous, one-flowered; cjnpty ghmies 1 with 1 or 2 smaller at the base below
the articulation, broad, obtuse, convolute, muticous, 5- to 7-nerved; flmering glume
similar to empty glume; palea rounded, much convolute. Stamens included, filaments
short, anthers with an acute tip. Ovarg ovate, encKng in a thick style, and bifid
non-plumose stigma. Caryopsis ovoid, shortly beaked, -1 to '2 in. long, fleshy. Miq. Fl.
hul. Bat. iii. 415; Munro in Trans. Linn. Soc. sxvi. 153, PL V; Kurz in Ind.
Forester i. 352. Bambusa scahdens, Blume, ez Naes in Flora Yii. (1824) 291. Nastus
Tjangkorkeh, SehuUes Sgst. Veg. vii. 1358; Kunth Enum. i. 430; Steudd B>jn. 333.
Chusquea amplopaniculata, Steud. Syn. 337; Miq. Fl. Ind. Bat. iii. 415.
i l a l ay Peninsula: collected at Larut in Perak by E. W. Ridley in 1892 (No.
3112). Extending to Java, Borneo and throughout the Moluccas.
Vae. andainanica.—Spikelets straw-coloiu'ed; leaves rather larger, up to 12 in.
long and 2 in. broad, softer, ovate-lanceolate, their sheaths more ciliate
at the mouth and with a more fimbriate ligitle. Dinochloa andamanica,
Kurs in Journ. As. Soc. Beng. xlii. (1873), ii. 253; Eurs For. Fl.
Burma ii. 570.
Andaman and Nicobar Islands: collected iu the Mount Harriet tropical
S. Andaman, by Kurz, 1875; by Sieber in 1858; by A. L. Homo in 1874; in the
Nicobar Islands by Kurz in 1875; and by Jelinek (Austrian 'Novara' Expedition),
(No. 259).
This curious and very widespread coast species has the smallest flowers of any Indian
species of bamboo yet known. Kurz, in his 'Report on the vegetation of the Andaman
Islands', Calcutta, 1870, p. 75, says, "forming nearly half of the whole scandent vege-
" tation in these jungles, and rendering many places nearly impenetrable." In that
INDIAN BAMBUSEiEi GAMüLE. 113
work he called it D. Tjanghorreh, but he afterwards published the Andaman plant or a
new species distinguished thus (see Journ. As. Soc. Bong. xlii. 249.) "spiculis multo
"minoribus, pallidis (nec brunneis), foliis multo majoribus et ligula vaginamm difiort."
After careful examination of the specimens, however, I cannot think that the Andaman
plant is anything more than a variety. Kurz gives the Andamancso name as
Baradahharat, and Ridley's Pcrak specimens bear the name Bulu Akar. Tjankorreh is
the Java name.
P l a t e No. 98.—Dinochloa Tjanghorreh, Biise. var. andamanica. 1, leaf-branch; 2, part
of flower-panicle; 3, young culm-shoot to show culm-sheaths—of natural sise-, 4, spikclet;
5, empty glume; 6, palea; 7, stamen ; 8, ovary; 9, caryopsis; 10 spinous branch node
with persistent base of iX-moXh.—enlarged. (No. 3 from Kurz' figure in Herb. Royal
Bot. Garden, Calcutta; Nos. 1 & 10 from Kurz' specimen; No. 9 from Mujiro's
drawing; rest from specimens collected by the Novara Expedition: all except No. !>
from var. andamanica, the type being so well represented in Munro's plate.)
2. Dinochloa M'Clellandi, Gamble.
An evergreen, lofty, often scandcnt bamboo. Culms up to 100 ft. in height, iii
climbing; shorter and straggling if growing alone, 1 to 2 in. in diameter, zigzag-geniculatc,
covered by the persistent loose sheaths, grey-green, walls '2 to '3 iu. thick; nodes
swollen ; internodes 6 to 8 in. long, often angled especially when young, scabrous, with
appressed brown pungent haii-s. Culm-sheaths cylindrical, tho base often dark, leatiiery,
persistent, 6 to 9 in. long, 7 to 9 in. broad at base, 2 to 3 iu. at top, covered witli
densely appressed golden brown pubescence, ending above in a narrow, -1 iir. broad,
dark, glabrous margin, edging tlie whole of tho truncate top outside the base of the
imperfect blade; imperfcet 5/ac/e lanceolate acuminate, rounded at tho base and decuvrent
on to the sheath, 6 to 12 in. long, 1 to 2'5 in. broad, recurved or spreading, glabrous
outside, densely brown hairy within; ligule -1 to '2 in. broad, entire or very faintly
serrate. Leaves large to very large, broadly oblong-lanceolate, acuminate, unequal at
the base; rounded and decurrent into a broad thick petiole up to -5 in. long;
tip acuminate, setaceous, scabrous, twisted; retrorsely scabrous on one or both edges,
glabrous on both sides ; 6 to 18 in. long, 1 to 4' in. broad ; main vein prominent,
secondary veins 10 to 18 pairs, intermediate about 7, transverse veinlets many, conspicuous,
oblique; leaf sheath striate, transversely-veined, produced at the mouth into a
rounded naked auricle, keeled at back, appressed-haiiy when youug, afterwards
glabrous ; ligule often broad, entire or serrate. Inflorescence, etc., unknown. D. MaclellANDii,
Xiirs in -Journ. As. Soc. Bcng. xlii. 249; /"o?-. Fl. Burma ii. 371; Bambosa
M'Clellandi, Munro in Trans. Linn. Soc. sxvi. 114.
Chittagong and Burma. Tropical forests of the Pegu Yoma and Mai-taban. Collected
by Kurz, Brandis, P. J. Carter (No. 16), etc. Cultivated in the Royal Botanic
Gardens of Calcutta and Poradeniya in Ceylon.
A handsome, well marked species, having all the characters of Dinochloa, as pointed
out by Kurz. Called Wanway (climbing bamboo) in Bm-ma,
P l a t e No. m.—Dinochloa M'Clellandi, Gamble. 1, leaf-branch; 2, largo leaf; 3, top
of shoot; 4, culm-sheath and portion of stem (from Calcutta Botanic Garden specimens).
A S N . EOY. BOT. GARD. CALCUTTA, VOL. T I I .