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Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Pyrrhanthera

HABIT Perennial. Culms 4–20 cm long. Ligule a fringe of hairs. Leaf-blades filiform.

INFLORESCENCE Inflorescence comprising only a few spikelets.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 5–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.

GLUMES Glumes persistent; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1 length of upper glume; membranous; without keels; 7–9 -veined. Lower glume surface without pits. Lower glume apex acute. Upper glume ovate; 1.5–2 length of adjacent fertile lemma; membranous; without keels; 7–9 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; coriaceous; much thinner above; without keel; wingless; 9 -veined. Lemma midvein ciliate. Lemma surface unwrinkled; without grooves; with marginal hair tufts. Lemma apex dentate; 3 -fid. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate.

FLOWER Lodicules 2; fleshy; ciliate.

FRUIT Caryopsis with free brittle pericarp. Embryo 0.2 length of caryopsis.

DISTRIBUTION Australasia.

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