GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Holcolemma dispar

HABIT Perennial. Culms geniculately ascending, or decumbent; slender; 10–50 cm long. Ligule a ciliolate membrane. Leaf-blades 2–10 cm long; 1–2 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 5–12 cm long; contracted about primary branches. Primary panicle branches ascending, or spreading; simple; 2 cm long, or 3 cm long; sterile at the tips (1.5–3mm bristle). Panicle branches secund.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.1–0.2 mm long.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 3–4 mm long; falling entire.

GLUMES Glumes dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume oblate; gibbous; 0.25 length of spikelet; membranous; without keels; 7 -veined. Lower glume lateral veins ribbed. Lower glume apex obtuse. Upper glume oblong; 0.6–0.7 length of spikelet; membranous; without keels; 11 -veined. Upper glume lateral veins ribbed. Upper glume apex obtuse.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret oblong; 1 length of spikelet; membranous; 7 -veined; sulcate; acute. Palea of lower sterile floret becoming indurate on keels at maturity; winged on keels. Fertile lemma elliptic; 1.5–1.7 mm long; indurate; without keel. Lemma surface granulose; rugose. Lemma margins involute. Lemma apex acute; mucronate. Palea involute; indurate. Palea surface rugose.

FLOWER Anthers 3.

DISTRIBUTION Australasia: Australia.

NOTES Paniceae. WDC.

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