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.

Glyphochloa mysorensis

HABIT Annual; caespitose. Culms erect, or geniculately ascending; slender; 10–20 cm long; 3–4 -noded. Lateral branches sparse. Leaf-sheaths pilose. Ligule an eciliate membrane; 1.5–2 mm long. Leaf-blades flat, or conduplicate; 6–10 cm long; 2–3 mm wide. Leaf-blade surface hirsute. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes; terminal and axillary.

Racemes 1; single; unilateral; 1–3.5 cm long. Rhachis fragile at the nodes; subcylindrical and excavated; 4–5 mm wide; glabrous on surface. Spikelet packing abaxial. Rhachis internodes clavate; 2.5 mm long. Rhachis internode tip transverse; crateriform.

Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels fused to internode; united wholly; flattened; 1.5 mm long.

STERILE SPIKELETS Companion sterile spikelets well-developed; comprising 2 subequal glumes without lemmas, or male; ovate; 3.5–4 mm long; longer than fertile; deciduous with the fertile. Companion sterile spikelet glumes coriaceous; winged on keels; 5 -veined; acuminate; awned; both glumes awned; with 4–10 mm long awn.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 3 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus glabrous; base truncate; with central peg; inserted.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; indurate; 2-keeled; keeled laterally; winged on keel; winged broadly; winged above; 3–5 -veined. Lower glume lateral veins ribbed. Lower glume surface with hooked spines; rough on flanks (and sometimes on back); glabrous, or puberulous. Lower glume apex lobed; 2 -fid; awned; 2 -awned. Lower glume awn 5–8 mm long. Upper glume elliptic; membranous; 3 -veined. Upper glume apex acute, or acuminate.

FLORETS Basal sterile florets barren; with palea. Lemma of lower sterile floret oblong; 2.5–2.75 mm long; hyaline. Fertile lemma ovate; 2–2.5 mm long; hyaline; without keel. Palea 1 length of lemma.

FLOWER Anthers 3; 0.75–1 mm long.

DISTRIBUTION Asia-tropical: India.

NOTES Andropogoneae. Jain.

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