Dendrocalamus cinctus

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 300–600 cm long; 10–25 mm diam.; woody. Culm-internodes terete; with small lumen; light green, or dark green; smooth, or scaberulous; distally glabrous, or pubescent. Lateral branches dendroid. Bud complement 1. Branch complement many; in a horizontal line; with 1 branch dominant, or 2 branches dominant; thinner than stem. Culm-sheaths deciduous; yellow, or green; pubescent; hairy above; with dark brown hairs; hairy on margins; auriculate. Culm-sheath ligule 1.3 mm high; dentate. Culm-sheath blade lanceolate; demarcated but persistent; reflexed; 15–25 cm long; 10–20 mm wide; acuminate. Leaves 7–8 per branch. Leaf-sheaths glabrous on surface. Leaf-sheath auricles absent, or falcate. Ligule an eciliate membrane; 2 mm long; pubescent on abaxial surface; erose; truncate. Collar with external ligule; ciliate. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 18–30 cm long; 15–45 mm wide. Leaf-blade midrib prominent beneath. Leaf-blade venation with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade margins smooth, or scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in oblong clusters; 1.5 cm long; dense; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 10–12 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 7 mm long; chartaceous; without keels; 13 -veined. Lower glume apex acuminate. Upper glume ovate; 9.4 mm long; chartaceous; without keels; 16 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma ovate; 11 mm long; chartaceous; without keel; 16 -veined. Lemma lateral veins with cross-veins. Lemma apex acute. Palea chartaceous; 8 -veined; 2-keeled. Palea keels puberulous; adorned above.

FLOWER Lodicules absent. Anthers 6; 6 mm long; orange. Filaments united in a tube. Stigmas 1–2; pubescent. Ovary umbonate.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: India.

NOTES Bambuseae. Sod & Ellis 1995.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.