Deyeuxia nivicola

HABIT Perennial; caespitose. Culms erect; 8–20 cm long. Ligule an eciliate membrane; 1 mm long; truncate. Leaf-blades flat, or convolute; 2–7 cm long; 0.5–1 mm wide. Leaf-blade apex abruptly acute.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 3–5 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 6–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent, or pilose. Floret callus hairs 0.5–1 mm long; 0.1–0.3 length of lemma.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 6–7 mm long; 1 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 4.5–6.5 mm long; 1.1–1.3 length of adjacent fertile lemma; membranous; purple; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate; 3.5 mm long; membranous; shiny; without keel; 5 -veined. Lemma lateral veins excurrent. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.05 way up back of lemma; geniculate; 6–7 mm long overall; with twisted column. Rhachilla extension 2.5–3 mm long; pilose.

FLOWER Lodicules 2. Anthers 3; 0.5 mm long. Stigmas 2.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.

DISTRIBUTION Asia-temperate: China. Asia-tropical: India.

NOTES Aveneae. Fl Brit India 1994.

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