Dimeria fischeri

HABIT Annual. Culms erect; 5–10 cm long. Culm-nodes bearded. Ligule a ciliolate membrane; 0.5 mm long. Leaf-blades 1–7 cm long; 1–4 mm wide. Leaf-blade surface glabrous. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; unilateral; 2–3 cm long. Rhachis narrowly winged; 0.75 mm wide; ciliate on margins. Spikelet packing crowded; regular; 2 -rowed.

Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels reduced to a stump; flattened; ciliate.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; compressed strongly; 4 mm long; falling entire. Spikelet callus 0.5 mm long; bearded; base obtuse.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 3.5 mm long; 1 length of spikelet; coriaceous; 1-keeled. Lower glume primary vein ciliate. Lower glume apex acute. Upper glume elliptic; 3.5 mm long; 1 length of spikelet; coriaceous; with hyaline margins; 1-keeled; winged on keel; winged all along. Upper glume primary vein ciliate. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 2 mm long; hyaline; ciliolate on margins. Fertile lemma elliptic; 2 mm long; hyaline; without keel; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 10 mm long overall; with twisted column. Column of lemma awn 3.5 mm long; glabrous. Palea absent or minute.

FLOWER Anthers 2; 0.8 mm long.

DISTRIBUTION Asia-tropical: India.

NOTES Andropogoneae. Bor 1993.

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