Dendrocalamus dumosus

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 20–25 mm diam.; woody. Culm-internodes terete; with small lumen. Lateral branches dendroid. Culm-sheaths deciduous; 9–18 cm long; pubescent; with appressed hairs; with dark brown hairs; auriculate; setose on shoulders; shoulders with 5 mm long hairs. Culm-sheath ligule 1.5 mm high; dentate and ciliate. Culm-sheath blade lanceolate; reflexed; 3–5 mm wide; acuminate. Leaf-sheath oral hairs scanty, or lacking; 5–8 mm long. Ligule an eciliate membrane. Leaf-blade base cuneate, or broadly rounded; without a false petiole, or with a brief petiole-like connection to sheath; petiole 0.1–0.25 cm long. Leaf-blades lanceolate; 9–23 cm long; 9–30 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; leafless between clusters.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 7 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes several; 4 empty glumes; persistent; similar; shorter than spikelet.

FLORETS Fertile lemma ovate; 7 mm long; chartaceous; without keel. Lemma apex acuminate. Palea chartaceous; 7 -veined; without keels.

FLOWER Lodicules absent. Anthers 3–6; 3.5 mm long. Stigmas 1; pubescent. Ovary umbonate; glabrous, or with a few apical hairs.

FRUIT Caryopsis with adherent pericarp; 5.5 mm long.

DISTRIBUTION Asia-tropical: Indo-China and Malesia.

NOTES Bambuseae. Holttum 1995.

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