Coelachne pulchella

HABIT Annual. Culms geniculately ascending, or decumbent; slender; 5–15 cm long. Culm-nodes pubescent. Ligule a fringe of hairs, or absent. Leaf-blades lanceolate; 0.8–2.5 cm long; 2–5 mm wide. Leaf-blade surface scaberulous. Leaf-blade apex acute.

INFLORESCENCE Inflorescence a panicle.

Panicle open; linear, or oblong; 4–10 cm long. Primary panicle branches spreading; 0.5–1 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.5–1 mm long.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong, or ovate; laterally compressed; 1.5–1.8 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume elliptic, or orbicular; 1–1.2 mm long; 1 length of upper glume; 0.66 length of spikelet; membranous; without keels; 3–5 -veined. Lower glume apex obtuse. Upper glume orbicular; 1–1.3 mm long; 0.66 length of spikelet; membranous; without keels; 3–7 -veined. Upper glume apex obtuse.

FLORETS Fertile florets female (upper); with the lowest dissimilar. Lowest fertile lemma bisexual; elliptic; 1.7 mm long; 1.7 length of adjacent lemma; firmer than adjacent lemma; glabrous, or hairy. Fertile lemma elliptic, or ovate; 1 mm long; chartaceous; without keel; 0 -veined. Lemma margins ciliate; hairy below. Lemma apex obtuse. Palea 1 length of lemma. Palea surface puberulous.

FLOWER Anthers 2; 0.3–0.4 mm long.

FRUIT Caryopsis with adherent pericarp; ovoid; 0.6–0.8 mm long. Hilum punctiform.

DISTRIBUTION Asia-tropical: Indo-China. Australasia: Australia.

NOTES Isachneae. CEH 1993.

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