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.

Temburongia

HABIT Perennial. Rhizomes short; pachymorph. Culms scandent; 760–1300 cm long; woody. Culm-internodes terete. Culm-nodes flanged. Lateral branches dendroid. Branch complement several; in a clump; with 1 branch dominant. Culm-sheaths auriculate. Culm-sheath blade lanceolate. Leaf-sheath auricles erect. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate.

INFLORESCENCE Synflorescence bractiferous; linear, or clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; without axillary buds at base of spikelet.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 7–17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated below proximal fertile floret.

GLUMES Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; scarious; without keels. Lower glume surface without pits. Lower glume apex acute. Upper glume ovate; scarious; without keels. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret ovate. Fertile lemma ovate; coriaceous; without keel; wingless. Lemma surface unwrinkled; without grooves. Lemma apex obtuse. Palea coriaceous. Apical sterile florets 1 in number; barren; linear.

FLOWER Lodicules 3; obtuse, or acute. Anthers 6. Stigmas 3. Ovary umbonate; glabrous.

FRUIT Caryopsis with adherent pericarp; oblong.

DISTRIBUTION Tropical Asia.

Please cite this publication as detailed in How to Cite Version: 27th January 2014.