Dissanthelium amplivaginatum

HABIT Perennial; caespitose. Culms 6–8 cm long. Leaf-sheaths inflated; striately veined. Ligule an eciliate membrane; 2.5–4 mm long. Leaf-blades conduplicate; 2.5 cm long; 1 mm wide. Leaf-blade apex abruptly acute, or acute.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; oblong, or ovate; 2–3 cm long. Primary panicle branches ascending, or spreading.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 5–5.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 5–5.5 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex acute. Upper glume lanceolate; 5–5.5 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; 4.8–5 mm long; chartaceous; keeled; 3 -veined. Lemma midvein scabrous. Lemma apex acute.

DISTRIBUTION South America: western South America.

NOTES Aveneae. Gr Peru 1997.

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