弯弓假瘤蕨 wan gong jia liu jue

Basionym: Polypodium albidoglaucum C. Christensen, Index Filic., Suppl. 1906-1912: 58. 1912, based on Polypodium austrosinicum Christ, Bull. Acad. Int. Géogr. Bot. 16: 107. 1906, not Polypodium austrosinicum Christ ex C. Christensen, Index Filic. 512. 1906.

Rhizome ca. 3 mm in diam., densely scaly; scales dark brown at center, light brown at margin, shiny, ovate-lanceolate, margin ciliate, apex acuminate. Fronds monomorphic. Stipe straw-colored, 1-4 cm, slender, glabrous; lamina pinnatisect, triangular in outline, 4-8 × 3-6 cm, base cordate, margin with up to 2 mm aristate teeth. Lateral lobes 1 or 2 pairs, lowest pair curved, deflexed at base, bending at apex, spreading or slightly ascending further up, 2-3 × 1-1.5 cm, apex obtuse or acute. Lateral veins distinct, veinlets hardly visible. Lamina herbaceous, both surfaces glabrous. Sori near costa.

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

The material here included within Selliguea albidoglauca was treated as Phymatopteris malacodon (= S. malacodon) in FRPS. It differs from the type of that species by the lack of the aristate marginal teeth of the lamina, characteristic of S. malacodon s.s. Chinese material of the true S. malacodon was named P. cartilagineoserrata.

The choice of epithet for this taxon depends on the priority of Polypodium austrosinicum Christ versus P. austrosinicum Christ ex C. Christensen (a replacement name for P. henryi Christ, here treated as a synonym of Microsorum fortunei (T. Moore) Ching), both published in 1906. The only direct indication of priority is the action of Christensen who claimed priority for the latter, published in his own work, and published the replacement name P. albidoglaucum for the former. In the absence of other information on the exact publication dates, this has to be accepted, and the correct epithet for this taxon is that of Christensen.