Dendrocalamus dianxiensis

Specimen: BS-0615 [BBG, SSG] (living plant), raised from seeds, the seeds (collected 2010, Mar. 2011, Feb. 2012) from FMXG, Yunnan, China, received as "Dendrocalamus dianxiensis, 滇西龙竹 (diān xi lóng zhú)", in Dec. 2010.

Characteristics: Culms erect. Young shoots green, emerge from July to September. Culm-internodes dark green, with short white hairs and farinose when young, light brownish and smooth when old, moderately thick-walled. Culm-nodes glabrous, not or slightly prominent, basal nodes without aerial root primordia. Branches several, the central one dominant, unbranched on the basal culm. Culm-leaves deciduous. Culm-leaf sheaths little longer than half of the internode, greenish-orange to reddish, initially sparsely covered with short white hairs, soon becoming almost glabrous, dark straw-colored when dry; margins pale to brown ciliate; apex narrow, truncate. Culm-leaf auricles none. Culm-leaf ligule 2–4 mm long, dark brown, dentate, long pale ciliate. Culm-leaf blade reflexed, early caducous. Foliage-leaves ca. 9 per branchlet. Foliage-leaf sheaths with short white stiff hairs, margins ciliate. Foliage-leaf auricles none. Foliage-leaf ligule 2–4 mm long, ciliate. Foliage-leaf blades large, 30–35 × 6.5–8 cm, glabrous above, slightly pubescent beneath; margins antrorsely scabrous; base rounded; apex attenuate; midrib prominent; pseudopetiole 5–10 mm long, glabrous.

Seed viability: Six months under normal atmospheric conditions; one year in storage at 1–6 °C.

Seed weight: 1,000 seeds ≈ 26–32 g (husk-wrapped seeds).

Seed germination: Seeds were placed in moistened coir at 100%, in December 2011, 22–25 °C day temperature, diffuse light, 12–14 °C night temperature, with atmospheric humidity >70%, coleoptiles emerged after 12 days, germination rate low (<40%).