海金沙叶莲座蕨 hai jin sha ye lian zuo jue

Angiopteris formosa Ching; A. rahaoensis Ching; A. sakuraii Hieronymus; A. taiwanensis Ching.

Fronds ca. 2 m; stipes green, cylindrical, stipes and rachises without deep groove, smooth, streaked. Laminae bipinnate; pinnae 35-70 cm; pinnules 5-15 cm, usually 1-1.2 cm wide, margins serrate. Veins simple or once forked; false veins obvious, long, extending ± halfway to costule. Sori ca. 1.5 mm, ca. 1 mm from margin.

Ravines, stream banks. Taiwan [Japan].

Angiopteris lygodiifolia is possibly conspecific with A. wallichiana (see comments under the latter species).