江南双盖蕨(原变种) jiang nan shuang gai jue (yuan bian zhong)

Asplenium mettenianum Miquel, Ann. Mus. Bot. Lugduno-Batavi 3: 174. 1867; Allantodia metteniana (Miquel) Ching; A. metteniana var. isobasis (Christ) Ching; Asplenium textorii Miquel; Athyrium mettenianum (Miquel) Ohwi; A. mettenianum var. isobasis (Christ) Ohwi; Diplazium cavaleriei Christ; D. isobasis Christ; D. japonicum (Thunberg) Beddome var. textorii (Miquel) Christ; D. lohfauense C. Christensen ex Wu; D. mettenianum var. isobasis (Christ) Tagawa; D. textorii (Miquel) Makino.

Fronds medium-sized. Lamina 25-40 × 15-25 cm; pinnae up to 15(-18) × 4 cm, pinnatilobate to pinnatipartite; veins pinnate, veinlets 5-7 pairs. Sori 2-5(-7) pairs.

Valley forests; 400-1400 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, N Thailand, N Vietnam].