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.

Viguierella

HABIT Annual. Culms decumbent; 10–40 cm long. Ligule a fringe of hairs.

INFLORESCENCE Inflorescence composed of racemes.

Racemes single; multilateral. Rhachis angular.

Spikelets ascending; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4–6 mm long; falling entire. Spikelet callus cuneate; pubescent; base pungent.

GLUMES Glumes shorter than spikelet; thinner than fertile lemma. Lower glume oblong; 1 length of upper glume; hyaline; 1-keeled; 2 -veined. Lower glume surface without pits; pubescent. Lower glume apex emarginate, or truncate; awned. Upper glume oblong; 0.25 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume surface pubescent. Upper glume apex emarginate, or truncate; awned; 1 -awned.

FLORETS Fertile lemma elliptic; lanceolate in profile; coriaceous; keeled; wingless; 3–5 -veined. Lemma surface unwrinkled; without grooves. Lemma apex acute; awned; 1 -awned. Apical sterile florets 1–3 in number; barren; in a clump; linear. Apical sterile lemmas awned.

FRUIT Caryopsis with adherent pericarp; oblong.

DISTRIBUTION Africa.

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