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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Dimeria chelariensis
HABIT Perennial. Culms decumbent; slender; 15–20 cm long; rooting from lower nodes. Culm-nodes bearded. Leaf-sheaths 4.5 cm long; keeled; pilose; with tubercle-based hairs. Ligule a ciliolate membrane; 0.5–1 mm long; obtuse. Leaf-blades linear, or lanceolate; 7–15 cm long; 2–3.5 mm wide. Leaf-blade surface pilose; with tubercle-based hairs. Leaf-blade margins tuberculate-ciliate. Leaf-blade apex acuminate.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 2–4; paired, or digitate; sinuous; unilateral; 5–7 cm long. Rhachis narrowly winged; angular; 0.25–0.5 mm wide; scabrous on margins. Spikelet packing crowded; regular; 2 -rowed.
Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels cuneate; flattened; 0.25 mm long; scabrous.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; compressed strongly; 2.5–3 mm long; falling entire. Spikelet callus square; 0.25 mm long; pubescent; base obtuse. Spikelet callus hairs 0.5 mm long.
GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume linear, or oblong; 1 length of spikelet; coriaceous; 1-keeled; winged on keel; winged narrowly; winged near apex. Lower glume primary vein scabrous. Lower glume surface asperulous. Lower glume apex attenuate. Upper glume elliptic, or oblong; 1 length of spikelet; coriaceous; 1-keeled; winged on keel; winged near apex. Upper glume primary vein scabrous; ciliate. Upper glume margins ciliate. Upper glume apex attenuate.
FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 1.5–1.75 mm long; hyaline; 2 -veined; ciliolate on margins; fringed above; acute. Fertile lemma oblanceolate; 2 mm long; without keel. Lemma margins ciliolate; hairy above. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 8 mm long overall; with twisted column. Column of lemma awn 2.5 mm long. Palea 0.4 mm long.
FLOWER Lodicules 2; cuneate. Anthers 2; 1.5 mm long.
FRUIT Caryopsis with adherent pericarp; oblong; 1.5 mm long.
DISTRIBUTION Asia-tropical: India.
NOTES Andropogoneae. Ravi 2006.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
