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Descriptions

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

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

Coleanthus

HABIT Annual. Culms decumbent; 2–5 cm long. Ligule an eciliate membrane.

INFLORESCENCE Inflorescence a panicle.

Panicle glomerate. Primary panicle branches whorled at most nodes.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 0.415–0.6 mm long; falling entire.

GLUMES Glumes both absent or obscure.

FLORETS Fertile lemma ovate; hyaline; keeled; wingless; 1 -veined. Lemma midvein scabrous. Lemma surface unwrinkled; without grooves. Lemma apex acute; awned; 1 -awned. Palea 1 length of lemma; hyaline; 2 -veined. Palea keels scabrous. Palea apex with excurrent keel veins.

FLOWER Lodicules absent. Anthers 2.

FRUIT Caryopsis with adherent pericarp; ellipsoid; laterally compressed. Embryo 0.25 length of caryopsis. Hilum elliptic.

DISTRIBUTION Europe, or Temperate Asia, or North America.

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