喜马拉雅水龙骨 xi ma la ya shui long gu

Goniophlebium hendersonii Beddome, Suppl. Ferns S. Ind. 21. 1876 ["Hendersoni"], based on Polypodium hendersonii Atkinson ex Hooker & Baker, Syn. Fil., ed. 2, 511. 1874, not E. J. Lowe (1858); Polypodiodes atkinsonii (C. Christensen) Ching; Polypodium atkinsonii C. Christensen.

Rhizome long creeping, 3-4 mm in diam., densely covered with scales; scales black, linear-lanceolate, broad at base, peltate, margin toothed, apex hairlike. Fronds remote. Stipe straw-colored, 8-12 cm, glabrous. Lamina pinnatipartite or pinnatisect at lower portion, lanceolate in outline, 20-25 × 5-8 cm, base cordate, apex acuminate. Segments 20-25 pairs, lanceolate, 3-4 × ca. 1 cm, margin serrate, apex acuminate, upper segments spreading or oblique, lowest pair deflexed. Veins visible, anastomosing to form 1 row of areoles along rachis and costa, costal areoles containing a simple included veinlet. Lamina papery, green, abaxial surface scaly, adaxial surface glabrous. Sori orbicular, in 1 row on each side of costa, terminal on included veinlets, medial.

Epiphytic on tree trunks or on rocks; 2000-3300 m. Xizang [India (Sikkim), Nepal].

Polypodium atkinsonii was published in 1906 as a replacement name for P. hendersonii Atkinson ex Hooker & Baker (1874), not E. J. Lowe (1858). Beddome validated the epithet "hendersonii" under Goniophlebium in 1876, and this has priority outside Polypodium.