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.

Festuca levingei

HABIT Perennial; caespitose; clumped loosely. Culms geniculately ascending; 20–45 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades conduplicate; 5–10 cm long; 2 mm wide. Leaf-blade venation comprising 5 vascular bundles; with 7 subepidermal sclerenchyma strands; with subepidermal sclerenchyma free from veins.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 5–7 cm long; 0.5–1 cm wide. Primary panicle branches ascending; bearing 2–3 fertile spikelets on each lower branch. Panicle branches scaberulous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 4–6 fertile florets; with diminished florets at the apex. Spikelets elliptic; laterally compressed; 5–7.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; dissimilar; shorter than spikelet. Lower glume lanceolate; 2–2.5 mm long; 0.7–0.8 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.6–3.3 mm long; 0.7–0.8 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma elliptic, or oblong; 3.5–4 mm long; chartaceous; without keel; 5 -veined. Lemma surface scaberulous; rough above. Lemma apex acuminate; muticous. Palea 1 length of lemma; 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Anthers 3; 0.8–1 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Asia-tropical: India.

NOTES Poeae. Fl Pak 1993.

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