Dinochloa aopaensis

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms 20 mm diam.; woody. Culm-internodes terete; 25–35 cm long; mid-green and white; distally pruinose. Lateral branches dendroid. Branch complement several. Culm-sheaths deciduous; 5.4–6 cm long; glabrous; glabrous on margins; auriculate; with 1–2 mm high auricles. Culm-sheath ligule 1 mm high; entire. Culm-sheath blade ovate; cordate; erect; 4–5.5 cm long; 5–9 mm wide; attenuate. Leaf-sheaths outer margin glabrous. Leaf-sheath oral hairs lacking. Leaf-sheath auricles erect; 0.5 mm long. Ligule an eciliate membrane; 1 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 18–29.7 cm long; 17–25 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy abaxially. Leaf-blade margins scabrous.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in compact unilateral clumps; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between branches; 25 cm long overall.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 2–2.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes two; persistent; shorter than spikelet. Lower glume ovate; 1–1.5 mm long. Lower glume apex acute; mucronate. Upper glume ovate; 1–1.5 mm long. Upper glume apex acute; mucronate.

FLORETS Fertile lemma ovate; 2.2 mm long; coriaceous; without keel. Lemma apex acute. Palea involute; 2 mm long; coriaceous; without keels.

FLOWER Anthers 6; 1 mm long; yellow.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Bambuseae. Widjaja 2009.

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