Eragrostis rottleri Stapf.
Original DistributionIndia, Tamil Nadu, Tranquebar
Extinction DataIUCN =Extinct Listed (Probably) 1989, Listed Extinct by WCMC 1996
DescriptionAnnual. Culms erect, or geniculately ascending; 30–70 cm long. Ligule a fringe of hairs. Leaf-blades flat, or convolute; 3–18 cm long; 1–4 mm wide. Leaf-blade apex attenuate.INFLORESCENCE Inflorescence a panicle.Panicle open; oblong; 6–10 cm long. Primary panicle branches 1–2 -nate; not whorled. Panicle branches eglandular; glabrous in axils.Spikelets solitary. Fertile spikelets pedicelled. Pedicels eglandular.FERTILE SPIKELETS Spikelets comprising 4–12 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4–6 mm long; 1.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas. Rhachilla internodes obscured by lemmas.GLUMES Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 1 mm long; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1–1.5 mm long; 0.9–1 times length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.FLORETS Fertile florets divergent. Fertile lemma ovate; 1.2–1.5 mm long; membranous; keeled; 3 -veined. Lemma apex acute. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.FLOWER Anthers 3; 0.2–0.3 mm long.FRUIT Caryopsis with adherent pericarp; ellipsoid; laterally compressed; 0.4–0.5 mm long.
Number of Specimens at Kew4
Specimen Type (Y/N)