斜下假瘤蕨 xie xia jia liu jue

Basionym: Phymatodes stracheyi Ching, Contr. Inst. Bot. Natl. Acad. Peiping 2(3): 83. 1933; Crypsinus stracheyi (Ching) Panigrahi & Patnaik; Phymatopsis stracheyi (Ching) Ching; Phymatopteris stracheyi (Ching) Pichi Sermolli; Polypodium stracheyi (Ching) Ching ex C. Christensen.

Rhizome ca. 3 mm in diam., densely scaly throughout; scales castaneous at center, brown at margin and apex, lanceolate, margin ciliate, apex acuminate. Fronds monomorphic. Stipe straw-colored, 5-8 cm, glabrous; lamina pinnatisect, 10-12 × 10-12 cm, base cordate, margin serrulate, not or only very shallowly notched. Lateral lobes 2-4 pairs, lowest pair ± deflexed, lanceolate, 5-7 × 1-1.5 cm, widest at base, narrowed from base, apex acuminate. Lateral veins distinct, veinlets obscure. Lamina herbaceous, both surfaces glabrous. Sori orbicular, near costa.

Epiphytic on tree trunks; 2800-3700 m. Hubei, Sichuan, Xizang, Yunnan [Bhutan, N India, Nepal].

Baker (J. Bot. 1889: 177. 1889) treated material of this species (Selliguea stracheyi) as Polypodium malacodon Hooker; C. B. Clarke (Trans. Linn. Soc. London, Bot. 1: 563. 1880) included material of this species within Polypodium stewartii (Beddome) Baker.