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.

Hubbardochloa

HABIT Annual. Culms erect, or decumbent; 4–17 cm long. Ligule a fringe of hairs.

INFLORESCENCE Inflorescence a panicle.

Primary panicle branches whorled at lower nodes.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 1.2–1.4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 0.9–1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface without pits. Lower glume apex erose; obtuse. Upper glume lanceolate; membranous; 1-keeled; 1 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; hyaline; without keel; wingless; 1 -veined. Lemma surface unwrinkled; without grooves. Lemma margins ciliate. Lemma apex truncate; awned. Principal lemma awn flexuous. Palea absent or minute.

FLOWER Lodicules absent. Anthers 3. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; fusiform; isodiametric; biconvex. Embryo 0.25 length of caryopsis. Hilum elliptic.

DISTRIBUTION Africa.

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