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.

Perotis flavinodula

HABIT Perennial; mat forming. Rhizomes elongated. Culms decumbent; 30–90 cm long. Ligule an eciliate membrane. Leaf-blades lanceolate; 4–6 cm long; 3–5 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; multilateral; 7–15 cm long. Spikelet packing contiguous; irregular.

Spikelets spreading, or ascending; solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.2 mm long.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear, or lanceolate; subterete; 3.3–4.5 mm long; falling entire. Spikelet callus oblong; 0.3–0.5 mm long.

GLUMES Glumes similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 3–4 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume primary vein spinulose. Lower glume lateral veins absent. Lower glume surface asperulous. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 7–10 mm long. Upper glume lanceolate; 3–4 mm long; 2–3 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume primary vein conspicuous; spinulose. Upper glume lateral veins absent. Upper glume surface asperulous. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 7–10 mm long.

FLORETS Fertile lemma lanceolate; 1–2 mm long; hyaline; without keel; 1 -veined. Lemma apex acute. Palea hyaline.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp; fusiform; dorsally compressed.

DISTRIBUTION Africa: east tropical.

NOTES Cynodonteae. FTEA.

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