BAMBOOS OF INDI A

Sinarundinaria
Sinarundinaria jainiana
Sinarundinaria jainiana (Das and Pal) Naithani Indian For. 116 (12): 990. 1990. (Fig. 99).
Ampelocalamus patellaris (Gamble) Stapleton. Chimonobambusa jainiana Das and Pal, J. Econ. Tax. Bot. 4: 1023.
1983. Drepanostachyum jainianum Majumdar, Bull. Bot. Surv. India 25: 235. 1983; Tewari, Monogr. Bamboo 88. 1992.
DESCRIPTION
An elegant caespitose bamboo. Culms ca. 6 m high, ca. 2 cm diameter, striate, light brown; internode striate, hairy;
nodes having a peltate hairy disc; branches many, fasciculate. Leaves ca. 8 cm long and 4 cm broad, oblong-lanceolate,
attenuate at the base into a short petiole, apex acuminate, hairy on the lower surface along the midrib, glabrous on the
edges; midvein prominent, secondary and intermediate veins are indistinguishable, transverse veinlets inconspicuous;
leaf-sheath striate, hairy on the edges with bristles on both side of the callus, yellow; ligule ca. 6 mm long. Inflorescence
a loose drooping panicle, terminating at the leafy branches; spikelet ca. 2.5 cm long, usually 5-flowered, uppermost
floret imperfect; rachilla ca. 4 mm long, clavate, ciliate; empty glumes 2, membranous; lemma ca. 12 mm long and 4 mm
broad, with long hairs towards the edges on the
back, 11-nerved, tip acute; palea ca. 11 mm long,
2-keeled, glabrous on the keels, tip ciliate and
bimucronate; lodicule 3. Ovary ca. 1.5 mm long,
ovoid-oblong, glabrous; style divided and each
having one plumose stigma.
FLOWERING
Flowering has been reported from Sikkim in 1905,
1908 and from Darjeeling in 1979.
line 99
DISTRIBUTION AND ECOLOGY
This species is distributed in Sikkim and West
Bengal (Darjeeling). Distributed mostly in
subtropical zone; apparently very rare; prefers very
humid and cooler habitats.
USES
The culms are ideal for weaving since it is flexible
and has long internodes. Leaves are used as fodder.
➤
Fig. 99. S. jainiana. A - part of the culm with a nodal ring; B - part
of inflorescence; C - a floret with rachilla; D - terminal sterile floret;
E - pistil with withered stamens; F - stamen; G - lodicules.
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