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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Racemobambos glabra
HABIT Perennial; caespitose. Culms leaning; 12 mm diam.; woody. Culm-internodes terete; hollow; 25–30 cm long; smooth; distally pruinose (below nodes). Culm-nodes flush with internodes. Lateral branches dendroid. Branch complement many; with 1 branch dominant. Culm-sheaths deciduous; chartaceous; glabrous; truncate at apex; without auricles; ciliate on shoulders. Culm-sheath ligule entire. Culm-sheath blade lanceolate; erect, or spreading; glabrous on surface. Leaves cauline. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 7–8 cm long; 3–5 mm wide. Leaf-blade surface glabrous.
INFLORESCENCE Inflorescence composed of racemes; bracteate at pedicel base.
Racemes 1; single; paucilateral; 2–3 cm long; bearing few fertile spikelets; bearing 3–4 fertile spikelets on each.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 4–5 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 10–17 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes several; 3 empty glumes; persistent; shorter than spikelet.
FLORETS Fertile lemma ovate; 5 mm long; chartaceous; without keel. Palea 10 mm long. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3. Anthers 6. Stigmas 3. Ovary umbonate; pubescent on apex.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Asia-tropical: Malesia.
NOTES Bambuseae. Bam Sabah 1996.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.