GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Apocopis pulcherrima

HABIT Annual. Culms 10–20 cm long. Leaf-sheaths keeled; glabrous on surface. Ligule an eciliate membrane; 0.5–0.75 mm long. Leaf-blades 3–6 cm long; 3–5 mm wide; flaccid. Leaf-blade surface pubescent; hairy on both sides; with tubercle-based hairs. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes; subtended by an inflated leaf-sheath. Peduncle 3–5.5 cm long; glabrous.

Racemes 2; paired; erect, or ascending; 1.5–3 cm long. Rhachis fragile at the nodes; subterete; ciliate on margins. Rhachis hairs tawny. Rhachis internodes linear; 2 mm long.

Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels adnate at the base to lower glume of sessile spikelet; linear; 2 mm long; ciliate; with tawny hairs; with 3–3.5 mm long hairs.

STERILE SPIKELETS Companion sterile spikelets represented by barren pedicels, or rudimentary.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 5.75 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus base obtuse; attached transversely.

GLUMES Glumes dissimilar; reaching apex of florets; firmer than fertile lemma. Lower glume oblong; 5–5.5 mm long; 0.9 length of spikelet; membranous; much thinner above; much thinner on margins; without keels; 7 -veined. Lower glume primary vein extending to apex. Lower glume lateral veins all falling short of apex. Lower glume margins ciliate. Lower glume apex emarginate. Upper glume oblong; 1 length of spikelet; membranous; with hyaline margins; 3 -veined. Upper glume margins ciliate. Upper glume apex truncate.

FLORETS Basal sterile florets male, or barren; with palea. Lemma of lower sterile floret oblong; 5 mm long; hyaline; 0 -veined; without midvein; without lateral veins. Fertile lemma oblong; 5.5 mm long; chartaceous; without keel; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 40 mm long overall; with twisted column. Column of lemma awn 18 mm long; pubescent. Palea hyaline; 0 -veined; without keels.

FLOWER Lodicules absent. Anthers 2; 2.5 mm long.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Andropogoneae. Bor 1992.

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