Sinobambusa sat

HABIT Perennial; culms solitary. Rhizomes elongated; leptomorph. Culms erect; 50–60 cm long; woody; without nodal roots. Culm-internodes channelled; hollow. Lateral branches dendroid. Branch complement three; in a horizontal line; with subequal branches; thinner than stem. Leaves cauline. Leaf-sheaths glabrous on surface; outer margin hairy. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate, or oblong; 5–15 cm long; 8–12 mm wide. Leaf-blade venation with 16–20 secondary veins; with distinct cross veins. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex attenuate.

INFLORESCENCE Synflorescence bractiferous; fasciculate; lax; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 8–20 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 30–50 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes two; persistent; similar; shorter than spikelet. Lower glume oblong, or ovate. Lower glume lateral veins with cross-veins.

FLORETS Fertile lemma ovate; 9–11 mm long; chartaceous; without keel. Lemma lateral veins with cross-veins. Lemma apex obtuse. Palea chartaceous. Palea keels ciliate; adorned above. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3. Anthers 3. Stigmas 3. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Arundinarieae. Lecomte 1996.

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