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Descriptions

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

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

Eremochloa attenuata

HABIT Perennial. Cataphylls evident (glabrous). Rhizomes elongated. Basal innovations extravaginal. Culms 16–42 cm long. Culm-internodes hollow; distally pilose. Culm-nodes glabrous. Leaf-sheaths pilose. Ligule a ciliolate membrane; 0.4–0.6 mm long. Leaf-blades conduplicate; 7–13 cm long; 2–3 mm wide. Leaf-blade surface pilose. Leaf-blade margins ciliate. Leaf-blade apex abruptly acute.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; straight; unilateral; 9–16 cm long. Rhachis fragile at the nodes; angular; glabrous on surface; glabrous on margins. Rhachis internodes clavate; 2–3 mm long; 0.5–0.7 length of fertile spikelet.

Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear; foliaceous; 3–3.4 mm long; 0.75–0.95 length of fertile spikelet.

STERILE SPIKELETS Companion sterile spikelets represented by barren pedicels.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; compressed strongly; 3.7–3.9 mm long; 1.9–2 mm wide; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 1 length of spikelet; coriaceous; 2-keeled; winged on keel; winged narrowly; winged near apex; 7–9 -veined. Lower glume primary vein pectinately spinose. Lower glume lateral veins transversely connected at apex. Lower glume surface flat; glabrous, or puberulous. Lower glume apex truncate. Upper glume ovate; 1 length of spikelet; chartaceous; 1-keeled; 3 -veined. Upper glume lateral veins transversely connected at apex. Upper glume surface glabrous. Upper glume apex acute.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret ovate; hyaline. Fertile lemma ovate; hyaline; without keel. Palea hyaline.

FLOWER Anthers 3; 1.5–2.2 mm long.

FRUIT Caryopsis ellipsoid.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Andropogoneae. Buitenhuis 2003.

ADDITIONAL CHARACTERS Glume spines 1.4–1.7mm.

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