Coelachne soerensenii

HABIT Annual. Culms decumbent; 5–10 cm long; rooting from lower nodes. Culm-nodes bearded. Ligule a fringe of hairs. Leaf-blades lanceolate; 1–2.5 cm long; 2–4 mm wide. Leaf-blade margins scaberulous. Leaf-blade apex acute.

INFLORESCENCE Inflorescence a panicle.

Panicle open; linear, or oblong; effuse; 5–15 cm long; 2–4 cm wide.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 1–1.25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.4 mm long.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume elliptic; 1 mm long; 1 length of upper glume; 0.8–1 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume elliptic; 1 mm long; 0.8–1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex acute.

FLORETS Fertile florets female (upper); with the lowest dissimilar. Lowest fertile lemma bisexual; elliptic; 1–1.25 mm long; 1.5 length of adjacent lemma; firmer than adjacent lemma. Fertile lemma elliptic; 0.75 mm long; chartaceous; without keel. Lemma apex obtuse. Palea 1 length of lemma. Palea keels scaberulous.

FLOWER Anthers 2; 0.25 mm long.

FRUIT Caryopsis with adherent pericarp; ellipsoid; 0.5 mm long. Hilum punctiform.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Isachneae. Bor 1993.

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