New! - Search other data sources for Dimeria idukkiensis

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 idukkiensis

HABIT Annual. Culms slender; 7–15 cm long. Culm-internodes smooth. Culm-nodes bearded. Lateral branches lacking. Leaf-sheaths 3–6.5 cm long; keeled. Ligule a ciliolate membrane; 1 mm long. Leaf-blades linear, or lanceolate; 2–5 cm long; 3–5 mm wide. Leaf-blade surface pilose; hairy abaxially; with tubercle-based hairs. Leaf-blade margins tuberculate-ciliate. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2; paired; unilateral. Rhachis broadly winged; 1 mm wide; ciliate on margins. Spikelet packing crowded; regular; 2 -rowed.

Spikelets appressed; solitary. Fertile spikelets pedicelled. Pedicels cuneate; flattened; 0.5–0.75 mm long.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or oblong; laterally compressed; compressed strongly; 4.5–5.5 mm long; falling entire. Spikelet callus pubescent; base obtuse. Spikelet callus hairs 0.75 mm long.

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

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 2.5 mm long; hyaline; 1 -veined; without lateral veins; ciliolate on margins. Fertile lemma elliptic; 3–3.5 mm long; without keel; 1 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 12 mm long overall; with twisted column. Column of lemma awn 4–5 mm long. Palea absent or minute.

FLOWER Lodicules 2. Anthers 2; 1 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: India.

NOTES Andropogoneae. Ravi & Anilkumar 2006.

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