New! - Search other data sources for Dimeria mahendragiriensis

Help - Wrong Description?

Kew Data Sources

Kew's Herbarium Catalogue
ePIC - Electronic Plant Information Centre

External Data Sources

Note - this takes you off of our website
Use your browser's back button to return to this page

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 mahendragiriensis

HABIT Perennial. Culms geniculately ascending; slender; 18–25 cm long; rooting from lower nodes. Culm-nodes pubescent. Lateral branches sparse. Leaf-sheaths 3–6 cm long; longer than adjacent culm internode; keeled; glabrous on surface, or pilose; with tubercle-based hairs. Ligule an eciliate membrane; 1–1.5 mm long; truncate. Leaf-blades 5–10 cm long; 2–4 mm wide. Leaf-blade midrib keeled beneath. Leaf-blade margins tuberculate-ciliate. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; unilateral; 4–5 cm long. Rhachis narrowly winged; flattened; 0.75 mm wide; ciliate on margins. Spikelet packing crowded; regular; 2 -rowed.

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

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; compressed strongly; 4–5 mm long; falling entire. Spikelet callus square; 0.5 mm long; pubescent; base obtuse. Spikelet callus hairs 0.75 mm long.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume elliptic, or oblong; 1 length of spikelet; coriaceous; pallid; 1-keeled; winged on keel; winged narrowly; winged above. Lower glume primary vein ciliate. Lower glume apex acute. Upper glume elliptic, or oblong; 1 length of spikelet; coriaceous; pallid; 1-keeled; winged on keel; winged all along. Upper glume primary vein ciliate. Upper glume margins ciliate. Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 2–2.5 mm long; hyaline; ciliolate on margins; fringed above; acute. Fertile lemma elliptic; 2.5–3 mm long; without keel. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 8–10 mm long overall; with twisted column. Column of lemma awn 3 mm long. Palea 0.75 mm long.

FLOWER Lodicules 2; cuneate. Anthers 2; 1.5 mm long.

FRUIT Caryopsis with adherent pericarp; oblong; 1.75–2 mm long.

DISTRIBUTION Asia-tropical: India.

NOTES Andropogoneae. Ravi 2006.

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