澜沧凤了蕨 lan cang feng liao jue

Gymnogramma serrulata Blume, Enum. Pl. Javae 2: 113. 1828; Coniogramme fraxinea (D. Don) Diels var. serrulata (Blume) Alderwerelt; C. lancangensis Ching & K. H. Shing.

Plants up to 1 m tall. Rhizomes decumbent, stout and fleshy; scales grayish brown, narrowly lanceolate. Fronds scattered; stipe straw-colored with purple spots, 60-75 cm × ca. 5 mm, abaxially rounded, adaxially grooved; lamina abaxially grayish green, adaxially green, broadly ovate-lanceolate, 55-70 × 22-36 cm, 2-pinnate, herbaceous and wrinkled when dry, abaxially pubescent, adaxially glabrous. Lateral pinnae 5-7 pairs; proximal 1 or 2 pairs of pinnae oblong, 30-35 × ca. 20 cm, with stalks ca. 3 cm, pinnate; medial pinnae trifoliolate or bifurcate, distal pinnae simple. Pinnules lanceolate or oblanceolate, ca. 14 × 3-3.5 cm, stalked (distal ones sessile), base cuneate, apex long caudate (narrowed tip 2-4 cm), margin obviously with sparse short teeth. Veins distinct abaxially, 1- or 2-forked; hydathodes spindle-shaped, far from base of teeth. Sori extending to 2/3 of veins.

Forests; 900-1300 m. SW Yunnan [NE India, Indonesia, Nepal, Philippines].

"Coniogramme lantsangensis" in FRPS (3(1): 242. 1990) is an orthographic error for C. lancangensis.