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.

Eremochloa renvoizei

HABIT Perennial; caespitose. Cataphylls evident. Rhizomes elongated. Basal innovations intravaginal. Culms erect; 20–30 cm long. Culm-internodes distally glabrous. Culm-nodes glabrous. Lateral branches ample; arising from lower culm. Leaf-sheaths loose; 3.5–7 cm long; glabrous on surface, or hirsute. Ligule a ciliolate membrane; 1.5–2 mm long. Leaf-blades flat, or conduplicate; 3–15 cm long; 4–5 mm wide. Leaf-blade surface glabrous. Leaf-blade margins smooth. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; arcuate; unilateral; 3.5–6 cm long. Rhachis fragile at the nodes; subterete. Rhachis internodes cuneate; 3–3.5 mm long; 0.66–0.7 length of fertile spikelet.

Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels cuneate; foliaceous; 7–7.5 mm long.

STERILE SPIKELETS Companion sterile spikelets represented by barren pedicels.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; compressed strongly; 4–4.5 mm long; 2 mm wide; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate; with central boss; attached transversely.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 1 length of spikelet; coriaceous; 2-keeled; winged on keel (dark red); winged above; 4–6 -veined. Lower glume primary vein pectinately spinose. Lower glume surface flat; glabrous. Upper glume oblong; 4–4.2 mm long; chartaceous; 1-keeled; keeled below; 3 -veined. Upper glume lateral veins with cross-veins.

FLORETS Basal sterile florets barren; with palea. Lemma of lower sterile floret oblong; 3.8 mm long; 0.8 length of spikelet; hyaline. Palea of lower sterile floret 3 mm long. Fertile lemma oblong; 3 mm long; 0.8 mm wide; hyaline; without keel. Palea oblong; 3.2 mm long; hyaline.

FLOWER Lodicules 2; cuneate; 0.5 mm long. Anthers 3; 1 mm long; brown.

FRUIT Caryopsis with adherent pericarp; ovoid; 1–1.5 mm long. Embryo 0.75 length of caryopsis. Hilum elliptic.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Andropogoneae. Traiperm & Boonkend 2012.

ADDITIONAL CHARACTERS Glume spines flat, 1.5–1.6 mm long.

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