Schizostachyum brachythyrsus

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms woody. Culm-internodes terete; hollow. Lateral branches dendroid. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 8–16 cm long; 12–25 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 lanceolate; laterally compressed; 30 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes several; persistent; shorter than spikelet.

FLORETS Fertile lemma ovate; 27 mm long; chartaceous; without keel. Lemma margins convolute; covering most of palea. Lemma apex acute. Palea tightly convolute around flower; chartaceous; without keels. Palea apex dentate; 2 -fid. Apical sterile florets 1 in number; barren; rudimentary.

FLOWER Lodicules absent. Anthers 6; 12 mm long. Filaments united in groups. Stigmas 3. Ovary with a steeple-like appendage.

FRUIT Caryopsis with free brittle pericarp; oblong.

DISTRIBUTION Asia-tropical: Papuasia.

NOTES Bambuseae. Holttum 1996.

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