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Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Dinochloa albociliata

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; zigzag; woody. Culm-internodes terete; with small lumen; retrorsely scabrous; distally pruinose. Lateral branches dendroid. Branch complement several; with 1 branch dominant; as thick as stem. Culm-sheaths deciduous but leaving a persistent girdle (this rugose); 7 cm long; pubescent; with white hairs, or tawny hairs; hairy on margins; auriculate; with 2–3 mm high auricles; setose on shoulders; shoulders with 12 mm long hairs. Culm-sheath ligule 2 mm high; entire. Culm-sheath blade narrowly ovate; constricted at base; reflexed; 9–10 cm long; 30–33 mm wide; glabrous on surface; acuminate. Leaf-sheaths puberulous; outer margin hairy. Leaf-sheath oral hairs setose; curly; 10–20 mm long. Leaf-sheath auricles erect; 2 mm long. Ligule an eciliate membrane; 1 mm long; entire, or erose. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 20.2–36.3 cm long; 32–37 mm wide. Leaf-blade apex acuminate.

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

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 4 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes two; persistent; shorter than spikelet. Lower glume ovate; 2–2.5 mm long. Lower glume apex acute; mucronate. Upper glume ovate; 2–2.5 mm long. Upper glume apex acute; mucronate.

FLORETS Fertile lemma oblong; 2.5–3 mm long; coriaceous; without keel. Lemma surface glabrous. Lemma apex acute. Palea involute; 2.5–3 mm long; coriaceous; without keels. Palea apex acute.

FLOWER Lodicules absent. Anthers 6; 1 mm long; yellow. Stigmas 3.

FRUIT Caryopsis with fleshy pericarp. Endosperm evanescent.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Bambuseae. Widjaja 2002.

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