Garnotia arundinacea

HABIT Culms decumbent, or prostrate; weak; 40–90 cm long. Culm-nodes pubescent. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule a ciliolate membrane; pilose on abaxial surface. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 12–20 cm long; 13–30 mm wide. Leaf-blade surface glabrous, or pubescent; sparsely hairy. Leaf-blade margins glabrous, or ciliate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 15–30 cm long. Primary panicle branches 4–8 cm long; bearing spikelets almost to the base.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5–3 mm long; falling entire. Spikelet callus glabrous; base obtuse.

GLUMES Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 2.5–3 mm long; membranous; 1-keeled; 3 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; mucronate, or awned; 1 -awned. Lower glume awn 0–1 mm long. Upper glume lanceolate; 2.5–3 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume surface scabrous; rough on veins. Upper glume apex acuminate; mucronate, or awned; 1 -awned. Upper glume awn 0–1 mm long.

FLORETS Fertile lemma oblong; 2.5–3 mm long; cartilaginous; without keel; 3 -veined. Lemma margins involute; interlocking with palea keels. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 6–12 mm long overall; without a column. Palea with auriculate flaps; 1 length of lemma; cartilaginous; 2 -veined. Palea keels winged (below); narrowly winged.

FLOWER Lodicules 2; cuneate; fleshy.

DISTRIBUTION Asia-tropical: India.

NOTES Arundinelleae. Gould.

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