阔片假毛蕨 kuo pian jia mao jue

Thelypteris latiloba Ching, Bull. Fan Mem. Inst. Biol., Bot. 6: 303. 1936.

Caudex not seen; base of stipes missing, remainder slightly flushed red, glabrous, ca. 25 cm. Laminae ca. 80 cm; pinnae over 20 pairs; basal pinnae slightly reduced and more widely spaced, frond apex not seen. Largest pinnae ca. 16 × 3 cm; aerophores not enlarged; basal acroscopic segments sometimes elongate, basal basiscopic segments of several lower pinnae reduced, edges lobed to 2 mm from costae; segments hardly falcate, oblong or oblong-lanceolate, 1.2-1.7 × ca. 0.6 cm, entire or shallowly undulate, acute at apices; costules ca. 7 mm apart. Veins ca. 11 pairs per segments, concolorous, slender, not prominent. Laminae herbaceous; abaxially rachis with sparse hairs, costae with short spreading hairs near base only, short capitate hairs on distal part, this distribution repeated on costules which also bear some much-reduced scales consisting of 2 cells; adaxially costae densely hairy, costules with sparse short hairs and scattered long ones. Sori small, attached above middle of veinlets and close to margins; indusia pale, firm, with very short capitate hairs on edge; stalks of sporangia slender, sometimes with a sessile spherical cell.

● C Guizhou (Ziyun).