大鳞鳞毛蕨 da lin lin mao jue

Polypodium sphaeropteroides Baker, Bull. Misc. Inform. Kew 1895: 55. 1895; Aspidium sphaeropteroides (Baker) Christ; Athyrium sphaeropteroides (Baker) C. Christensen; Ctenitis sphaeropteroides (Baker) Ching; Dryopsis sphaero-pteroides (Baker) Holttum & P. J. Edwards; Phegopteris sphaeropteroides (Baker) Christ.

Rhizomes erect. Stipe stramineous, 30-45 cm; stipe scales brown, ovate to broadly lanceolate, ca. 10 × 3-5 mm. Lamina 3-pinnate to 4-pinnatifid, ovate, 30-45 × 20-30 cm; free lateral pinnae 18-21 pairs, contiguous except basal ones; basal pinnae not shortened, 12-16 × 6-8 cm, not reflexed; middle pinnae 13-16 × 4-6 cm; pinnules entire or sometimes distinctly serrate, obtuse and serrate at apex, hyaline margins lacking. Rachises and costae abaxially covered with hairs but no scales; costules without scales. Veins of ultimate pinnules pinnate, with brown hairs on abaxial surface. Sori not confined to distal part of pinnules, medial to submarginal. Indusia distinct, persistent or partly fugacious, entire or nearly so. Perispore coarsely tuberculate.

● Forests; 2100-2800 m. Sichuan, Yunnan.