Dendrocalamus maiensis

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1000–2000 cm long; 60–80 mm diam.; woody. Culm-internodes terete. Lateral branches dendroid. Culm-sheaths 15–25 cm long; 1.2 times as long as wide; coriaceous. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs setose. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.5–0.6 cm long. Leaf-blades oblong; 32–36 cm long; 45–60 mm wide. Leaf-blade apex acuminate.

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

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 5–8 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 18–22 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.

GLUMES Glumes several; 2–3 empty glumes; persistent; similar; shorter than spikelet. Upper glume ovate; 4–6 mm long. Upper glume apex acute; mucronate.

FLORETS Fertile lemma ovate; auriculate at base; 10–12 mm long; 10–12 mm wide; chartaceous; without keel. Lemma surface pubescent. Lemma margins ciliate. Lemma apex acute; mucronate. Palea chartaceous; 2-keeled but the uppermost without keels. Palea surface pilose.

FLOWER Anthers 6. Stigmas 1. Ovary umbonate.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Bambuseae. Nguyen 1996.

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