Microstegium lanceolatum (Keng) S.M.Phillips & S.L.Chen, 2006

Chen, H., Veldkamp, J. - F. & Kuoh, C. - S., 2012, Taxonomic revision of Microstegium s. str. Andropogoneae, Poaceae), Blumea 57 (2), pp. 160-189 : 185

Microstegium lanceolatum (Keng) S.M.Phillips & S.L.Chen

Microstegium lanceolatum (Keng) S.M.Phillips & S.L. Chen (2006) 596. — Ischaemum lanceolatum Keng (1931) 155, t. 1. — Type: Maire 7039 (holo US; UC).

Description after the original publication.

Perennials, caespitose. Culms erect, robust, 20–40 cm long, nodes glabrous. Sheaths glabrous. Ligule a glabrous membrane, 2–3 mm long. Blades lanceolate, 3–8 cm long, 3–10 mm wide, stiff, base attenuate to slightly rounded, pseudopetiole present, margins scabrous, apex acute or acuminate, glabrous. Panicles c. 7 cm long, common axis c. 1.5 cm long. Racemes 2–3, paired or digitate, ascending, straight, 3–6 cm long. Rachis fragile, margins ciliate, internodes linear. Sessile spikelets oblong to lanceolate, 5–6 mm long, callus pilose. Lower glume oblong to lanceolate, coriaceous, midrib glabrous, dorsally longitudinally grooved, smooth, glabrous, margins glabrous, apex acute, entire or erose. Upper glume oblong, back acute, glabrous, midrib glabrous, apex entire, acute, muticous. Lower florets paleate, male or barren. Lower lemma oblong, muticous. Upper lemma oblong, 4–5 mm long, veined, ciliate, hairy all along the margins, apex incised to half of the lemma length, awn from a sinus, geniculate, column twisted, (incl. column) 8–12 mm long. Upper palea membranous, apex entire. Pedicels linear, margins pubescent. Pedicelled spikelets subequal to the sessile ones, or variously reduced.

Distribution — China (Yunnan)

Habitat — Not recorded, 2800–3000 m altitude .

Note — No specimen seen.