Calamagrostis emirnensis

HABIT Perennial. Culms decumbent; 60–80 cm long. Ligule an eciliate membrane; 3–4 mm long. Leaf-blades 10–20 cm long; 2–6 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 12–25 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5–4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 2.5 mm long; 0.8 length of lemma.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 3.5–4 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 3.5–4 mm long; 1.1–1.3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 3 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins excurrent. Lemma apex erose; truncate; awned; 1 -awned. Principal lemma awn subapical; straight; 2.5 mm long overall; without a column. Palea 2.5–3 mm long; 0.75–1 length of lemma; hyaline.

FLOWER Lodicules 2; membranous. Anthers 3; 0.8 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Africa: western Indian ocean.

NOTES Aveneae. WDC 1994.

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