Dimeria hohenackeri

HABIT Annual. Culms slender; 30–60 cm long. Culm-nodes bearded. Leaf-sheaths keeled; pilose; with tubercle-based hairs. Ligule a ciliolate membrane; 0.5–1 mm long. Leaf-blades 3–6 cm long; 2–4 mm wide; flaccid. Leaf-blade surface smooth, or scaberulous; rough on both sides; pilose; hairy on both sides; with tubercle-based hairs. Leaf-blade margins scabrous; tuberculate-ciliate. Leaf-blade apex acute, or acuminate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3–4; digitate; unilateral; 4–12 cm long. Rhachis angular; scabrous on margins; glabrous on margins. Spikelet packing crowded; regular; 2 -rowed.

Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels cuneate; flattened; 0.2–0.9 mm long; bearing a few hairs.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets linear; laterally compressed; compressed strongly; 4–5 mm long; falling entire. Spikelet callus 0.25 mm long; base obtuse.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 4–5 mm long; 1 length of spikelet; coriaceous; much thinner on margins; without keels. Lower glume surface scabrous; rough above. Lower glume apex acute. Upper glume oblong; 1 length of spikelet; coriaceous; with hyaline margins; 1-keeled; wingless. Upper glume surface pubescent. Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 2.8–3 mm long; hyaline; ciliate on margins. Fertile lemma elliptic; 3.5–4 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 4 mm long; glabrous. Palea absent or minute.

FLOWER Anthers 2; 1.5–2.5 mm long.

DISTRIBUTION Asia-tropical: India.

NOTES Andropogoneae. Bor 1993.

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