Dimeria leptorhachis

HABIT Perennial; caespitose. Culms erect; 50–120 cm long. Ligule an eciliate membrane. Leaf-blades 15–25 cm long; 3–10 mm wide. Leaf-blade surface pubescent, or pilose.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3–10; digitate; straight; unilateral; 8–15 cm long. Rhachis subterete; glabrous on margins. Spikelet packing crowded; 0.6–0.8 their length apart; regular; 2 -rowed.

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

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; compressed strongly; 5–8 mm long; falling entire. Spikelet callus pubescent; base truncate.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic; 1 length of spikelet; coriaceous; 1-keeled; wingless; 3 -veined. Lower glume primary vein eciliate, or ciliate. Lower glume apex acute. Upper glume elliptic; coriaceous; with hyaline margins; 1-keeled; wingless; 3 -veined. Upper glume primary vein eciliate, or ciliate. Upper glume surface pilose. Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline. Fertile lemma elliptic; without keel; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 7–12 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.

FLOWER Anthers 2.

DISTRIBUTION Asia-tropical: India.

NOTES Andropogoneae. WDC.

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