Schizostachyum lumampao

HABIT Perennial; caespitose; clumped densely. Rhizomes short; pachymorph. Culms erect, or arching; 1000–1500 cm long; 40–80 mm diam.; woody. Culm-internodes terete; hollow; 25–50 cm long; distally glabrous. Lateral branches dendroid. Buds or branches absent from lower quarter of culm. Branch complement several, or many. Culm-sheaths persistent; 24–26 cm long; 1 times as long as wide; hispid; with yellow hairs; without auricles. Culm-sheath ligule ciliolate. Culm-sheath blade lanceolate; reflexed; 9 cm long; 19 mm wide; pubescent. Leaf-sheaths glabrous on surface. Leaf-sheath auricles absent. Ligule an eciliate membrane; erose. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 30–36 cm long; 25–30 mm wide.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 15 mm long; 1.5 mm wide; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes two; persistent; shorter than spikelet.

FLORETS Fertile lemma ovate; 12–14 mm long; chartaceous; without keel. Lemma margins convolute; covering most of palea. Lemma apex acute. Palea tightly convolute around flower; chartaceous; without keels. Apical sterile florets 1 in number; barren; rudimentary.

FLOWER Anthers 6. Stigmas 3. Ovary with a steeple-like appendage.

FRUIT Caryopsis with free brittle pericarp; oblong.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Bambuseae. Prosea 1996.

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