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.

Crypsis acuminata

HABIT Annual. Culms erect, or geniculately ascending; 1–40 cm long. Leaf-sheaths glabrous on surface, or pilose. Ligule a fringe of hairs. Leaf-blades 2–4 cm long; 1–3 mm wide; glaucous. Leaf-blade surface puberulous to pilose; hairy on both sides. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle spiciform; linear; 3–8 cm long; 0.5–0.7 cm wide. Primary panicle branches accrescent to a central axis; with lateral stumps on axis.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2–4 mm long; falling entire.

GLUMES Glumes similar; shorter than spikelet, or reaching apex of florets. Lower glume lanceolate; 2–2.5 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein ciliolate. Lower glume lateral veins absent. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 1–2 mm long. Upper glume lanceolate; 2–2.5 mm long; 0.8–1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein ciliolate. Upper glume lateral veins absent. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 1–2 mm long.

FLORETS Fertile lemma lanceolate; laterally compressed; 2–4 mm long; membranous; keeled; 1 -veined. Lemma midvein ciliate. Lemma apex acute; awned; 1 -awned. Principal lemma awn 0.5–1.2 mm long overall. Palea 2–3 mm long; 2 -veined. Palea apex obtuse.

FLOWER Lodicules absent. Anthers 3; 1–2 mm long.

FRUIT Caryopsis with free soft pericarp; ovoid; 1–1.5 mm long; apex unappendaged.

DISTRIBUTION Europe: eastern. Asia-temperate: Soviet Middle Asia and western Asia.

NOTES Eragrostideae. Fl Turk 1993.

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