Dendrocalamus macroculmis

HABIT Perennial; caespitose; clumped densely. Rhizomes short; pachymorph. Culms erect; woody. Culm-internodes terete; dark green, or brown; distally pubescent. Lateral branches dendroid. Culm-sheaths brown and red; distinctly mottled with last colour; hairy on margins. Culm-sheath ligule fimbriate. Culm-sheath blade linear; 10–20 cm long. Leaves 8–10 per branch. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 20–25 cm long; 40–50 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in globose clusters; dense; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 4–6 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 8–10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes suppressed between florets.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate. Upper glume ovate.

FLORETS Fertile lemma ovate; 4–7 mm long; membranous; without keel; 13–17 -veined. Lemma margins convolute; ciliolate. Lemma apex obtuse; mucronate. Palea membranous; 2-keeled but the uppermost without keels. Palea keels ciliate.

FLOWER Lodicules absent, or 1. Anthers 6. Filaments free. Stigmas 1; pubescent. Ovary umbonate; pubescent on apex.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Bambuseae. Lecomte 1996.

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