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.

Panicum danguyi

HABIT Perennial. Culms prostrate. Lateral branches ample. Leaf-sheaths striately veined; glabrous on surface. Ligule a ciliolate membrane. Leaf-blades lanceolate; 2.5–4 cm long; 1.5–3 mm wide. Leaf-blade margins scaberulous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; lanceolate; 4.5–5 cm long; 1.5 cm wide. Primary panicle branches appressed. Panicle branches scaberulous; hirsute; bearded in axils.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.2–0.5 mm long; villous; with 2.5–3 mm long hairs.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or oblong; dorsally compressed; 1.5–1.6 mm long; falling entire.

GLUMES Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.3 mm long; 0.2 length of spikelet; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume lanceolate; 1.3–1.5 mm long; 0.9 length of spikelet; membranous; without keels; 5 -veined. Upper glume surface asperulous. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; lanceolate; 1.5–1.6 mm long; 1 length of spikelet; membranous; 5 -veined; scaberulous; acute. Fertile lemma oblong; dorsally compressed; 1.5–1.6 mm long; indurate; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.

DISTRIBUTION Africa: western Indian ocean.

NOTES Paniceae. Camus 2007.

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