Garnotia thailandica

HABIT Culms of moderate stature, or slender; 100–150 cm long. Culm-nodes bearded. Leaf-sheaths outer margin glabrous, or hairy. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane; 0.3–1 mm long. Leaf-blades 20–40 cm long; 12–20 mm wide. Leaf-blade surface pilose; hairy on both sides; with tubercle-based hairs.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong; 40–80 cm long; contracted about primary branches. Primary panicle branches 8–15 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; 4.6–6 mm long; falling entire. Spikelet callus bearded; base obtuse. Spikelet callus hairs 0.2–0.6 mm long.

GLUMES Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 3.5–4.5 mm long; 0.75 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; muticous, or awned; 1 -awned. Lower glume awn 0–7 mm long. Upper glume lanceolate; 4.6–6 mm long; 1.3 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume surface scabrous; rough on veins. Upper glume apex acuminate; muticous, or awned; 1 -awned. Upper glume awn 0–7 mm long.

FLORETS Fertile lemma oblong; 3.5–4.5 mm long; cartilaginous; light brown; 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; 10–15 mm long overall; with twisted column. Column of lemma awn 2–3 mm long. 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: Indo-China.

NOTES Arundinelleae. Gould.

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