Isachne veldkampii

HABIT Annual. Culms slender; 3–8.5 cm long. Culm-nodes glabrous. Leaf-sheaths longer than adjacent culm internode; glabrous on surface. Leaf-sheath oral hairs scanty, or lacking. Ligule absent. Leaf-blades ovate; 15 cm long; 7 mm wide. Leaf-blade midrib indistinct. Leaf-blade surface smooth, or scaberulous; rough adaxially; glabrous. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 0.7–1.2 cm long; 0.6–1 cm wide. Primary panicle branches spreading; 1 -nate; 0.3–0.5 cm long; bearing 1–3 fertile spikelets on each lower branch. Panicle branches glandular.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 1.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.

GLUMES Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 1.1 mm long; 0.75 length of spikelet; membranous; without keels; 3 -veined. Lower glume lateral veins obscure. Lower glume surface puberulous. Lower glume apex obtuse. Upper glume ovate; 1.2–1.4 mm long; 0.9 length of spikelet; membranous; without keels; 5 -veined. Upper glume lateral veins obscure. Upper glume surface puberulous. Upper glume apex obtuse.

FLORETS Fertile lemma elliptic; 1.2–1.5 mm long; coriaceous; without keel. Lemma surface puberulous. Lemma margins involute. Lemma apex obtuse. Palea elliptic; coriaceous; 2 -veined. Palea apex obtuse.

FLOWER Lodicules 2. Anthers 3; 0.8 mm long.

FRUIT Caryopsis with adherent pericarp; ovoid; 0.8 mm long.

DISTRIBUTION Asia-tropical: India.

NOTES Isachneae. Bhat & Nagendran 2005.

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