密叶瘤足蕨 mi ye liu zu jue

Lomaria pycnophylla Kunze, Bot. Zeitung (Berlin) 6: 143. 1848; Plagiogyria coerulescens Ching; P. communis Ching; P. decrescens Ching; P. gigantea Ching; P. glauca (Blume) Mettenius var. virescens C. Christensen; P. lanuginosa Ching; P. lineata Ching; P. minguingensis R. D. Dixit & A. Das; P. pycnophylla var. mixta Copeland; P. pycnophylla var. remota Christ; P. scandens Mettenius; P. simulans Ching; P. taliensis Ching; P. tetraptera W. M. Chu & J. J. He; P. virescens (C. Christensen) Ching; P. wilhelmensis Nakaike.

Stipes 6-60 cm on sterile fronds, 10-70 cm on fertile fronds, distally tetragonal, terete, ovate, or triangular in cross section; vascular bundle U-shaped; stipes and rachises glabrous to hairy, sometimes densely hairy; aerophores elongate and hornlike with blunt apex. Sterile lamina pinnate, 15-100 × 6-40 cm, not glaucous, apically with a pinnatilobed segment or a pinnalike segment; rachises abaxially flattened, semiterete, or grooved; pinnae 20-50 pairs; proximal pinnae sessile to shortly stalked, base truncate or rounded, subdeflexed or not, gradually abbreviated or slightly shorter, sometimes becoming vestigial on stipe; middle pinnae sessile, base truncate or rounded; veins simple or sometimes 1-forked. Fertile lamina pinnate, 20-70 × 4-20 cm; rachises abaxially flattened, semiterete, or grooved, sometimes winged; pinnae 16-40 pairs, sessile or shortly stalked; proximal pinnae gradually abbreviated or some pairs aerophore-like or vestigial. Paraphyses few, shed early, brown or dark brown. Spores yellow to brown, not obviously tuberculate.

Forests, wet areas; 1200-3500 m. Sichuan, Xizang, Yunnan [Bhutan, N India, Indonesia, Malaysia (including Borneo), N Myanmar, Nepal, New Guinea, Philippines (Luzon)].