Elymus nomnov3(Kengyilia zadoiensis)

HABIT Perennial; culms solitary. Culms erect; 40–100 cm long; 3–4 -noded; with 0.33 of their length below uppermost node. Culm-nodes black. Leaf-sheaths mostly shorter than adjacent culm internode; smooth; glabrous on surface. Leaf-sheath auricles falcate; 1–1.5 mm long. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades flat, or involute; 7–10 cm long; 2–3 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; linear, or oblong; straight, or arcuate; bilateral; 7–10 cm long. Rhachis pubescent on margins. Spikelet packing broadside to rhachis; 2 -rowed. Rhachis internodes 3–5 mm long.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 4–8 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 7–12 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes similar; subequal in width; shorter than spikelet. Lower glume lanceolate; 4–5 mm long; 1 length of upper glume; coriaceous; much thinner on margins; 1-keeled; keeled above; 3 -veined. Lower glume lateral veins obscure. Lower glume apex acuminate; mucronate. Upper glume lanceolate; 4–5 mm long; 0.5 length of adjacent fertile lemma; coriaceous; with membranous margins; 1-keeled; keeled above; 3 -veined. Upper glume primary vein obscure. Upper glume apex acuminate; mucronate.

FLORETS Fertile lemma lanceolate, or oblong; 7–9 mm long; coriaceous; 5 -veined. Lemma surface pilose. Lemma apex awned; 1 -awned. Principal lemma awn straight, or curved; 4–10 mm long overall. Palea 1 length of lemma. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1 mm long; yellow.

DISTRIBUTION Asia-temperate: China.

NOTES Triticeae. Lu & Wu 2011.

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