Indocalamus longiauritus

HABIT Perennial; caespitose. Rhizomes elongated; leptomorph. Culms erect; 100 cm long; 3–6 mm diam.; woody. Culm-internodes terete. Lateral branches suffrutescent. Culm-sheaths hispid; hairy at the base; with dark brown hairs; hairy on margins; auriculate; setose on shoulders; shoulders with 10 mm long hairs. Leaves cauline; 1–3 per branch. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.3–0.7 cm long. Leaf-blades lanceolate; 1.2–8.5 cm long; 8–41 mm wide. Leaf-blade venation with 13–29 secondary veins; with distinct cross veins. Leaf-blade margins scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle; without bracts, or bracteate at branch bases.

Panicle contracted; oblong; 8–14 cm long. Panicle axis pubescent. Panicle branches pubescent.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 8 fertile florets; with diminished florets at the apex. Spikelets linear; subterete; 40–60 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; chartaceous; without keels. Lower glume apex acuminate. Upper glume lanceolate; chartaceous; without keels; 7–9 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma ovate; 10 mm long; chartaceous; without keel; 7 -veined. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3; 1.5 mm long; ciliate. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Hand.-Mazz. 2002.

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