Centotheca uniflora

HABIT Annual. Culms 30–100 cm long. Ligule an eciliate membrane. Leaf-blade base simple; symmetrical. Leaf-blades lanceolate; 5–14 cm long; 6–13 mm wide. Leaf-blade venation with distinct cross veins.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 10–25 cm long; contracted about primary branches. Primary panicle branches bearing spikelets almost to the base.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 3–7 mm long; 2–7.5 length of fertile spikelet; smooth; glabrous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed, or subterete; 4 mm long; falling entire; deciduous with the pedicel.

GLUMES Glumes similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume ovate; 2.5 mm long; 0.75 length of upper glume; herbaceous; 1-keeled; 3–5 -veined. Lower glume primary vein scaberulous. Lower glume apex acuminate. Upper glume oblong; 3.2 mm long; 0.9 length of adjacent fertile lemma; herbaceous; 1-keeled; 3–5 -veined. Upper glume primary vein scaberulous. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 3–3.5 mm long; herbaceous; without keel; 5–7 -veined. Lemma surface glabrous. Lemma apex emarginate; mucronate.

FLOWER Lodicules 2; cuneate. Anthers 2; 1.25–1.4 mm long.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Centotheceae. WDC.

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