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.

Aegilops kotschyi

HABIT Annual; caespitose. Culms erect, or geniculately ascending; 12–25 cm long. Leaf-sheaths pilose. Leaf-sheath oral hairs ciliate. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades 6–12 cm long; 1.5–4 mm wide. Leaf-blade surface glabrous, or pilose; sparsely hairy. Leaf-blade margins ciliate.

INFLORESCENCE Inflorescence composed of racemes; deciduous as a whole.

Racemes 1; single; lanceolate; bilateral; 0.5–4 cm long; 2.5–5 mm wide; bearing few fertile spikelets; bearing 2–6 fertile spikelets on each. Rhachis tough. Spikelet packing broadside to rhachis.

Spikelets solitary. Fertile spikelets sessile.

STERILE SPIKELETS Basal sterile spikelets rudimentary; 2–3 in number.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 7–10 mm long; falling entire; deciduous with accessory branch structures.

GLUMES Glumes similar; shorter than spikelet. Lower glume oblong, or ovate; 4–6 mm long; 1 length of upper glume; coriaceous; without keels; 7–9 -veined. Lower glume lateral veins distinct; ribbed. Lower glume surface scabrous; rough on veins; glabrous, or pilose. Lower glume apex dentate; 3 -fid; truncate; awned; 3 -awned. Lower glume awn 10–30 mm long. Upper glume oblong, or ovate; 4–6 mm long; 0.7–0.8 length of adjacent fertile lemma; coriaceous; without keels; 7–9 -veined. Upper glume lateral veins distinct; ribbed; parallel at apex. Upper glume surface scabrous; rough on veins; glabrous, or pilose. Upper glume apex dentate; 3 -fid; truncate; awned; 3 -awned. Upper glume awn 10–30 mm long.

FLORETS Fertile lemma oblong; 5–8 mm long; coriaceous; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1–3 -awned. Principal lemma awn 5–15 mm long overall. Palea 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp; hairy at apex. Disseminule comprising a inflorescence.

DISTRIBUTION Africa: north. Asia-temperate: Caucasus, western Asia, and Arabia.

NOTES Triticeae. Fl Turk 1993.

Please cite this publication as detailed in How to Cite Version: 27th January 2014.