Dimeria pubescens

HABIT Perennial; short-lived; mat forming, or caespitose. Culms erect, or decumbent; 15–60 cm long. Culm-nodes bearded. Ligule an eciliate membrane. Leaf-blades 3–20 cm long; 2–4 mm wide. Leaf-blade surface pilose, or hirsute; with tubercle-based hairs. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1–2; single, or paired; straight; unilateral; 2.5–9 cm long. Rhachis flattened; 1.2–2.5 mm wide; ciliate on margins. Spikelet packing crowded; regular; 2 -rowed.

Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels cuneate; flattened; 0.2–0.5 mm long.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; compressed strongly; 3.5–6 mm long; falling entire. Spikelet callus pilose; base truncate, or obtuse.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; coriaceous; 1-keeled; wingless, or winged on keel; winged narrowly; winged near apex; 3 -veined. Lower glume primary vein ciliate. Lower glume apex acute. Upper glume lanceolate; coriaceous; with hyaline margins; 1-keeled; winged on keel; winged all along, or near apex; 3 -veined. Upper glume primary vein ciliate. Upper glume apex acute, or acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 3.5 mm long; hyaline. Fertile lemma elliptic; 3 mm long; without keel; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 6–12 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.

FLOWER Anthers 2.

DISTRIBUTION Asia-tropical: India and Indo-China.

NOTES Andropogoneae. WDC.

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