二回莲座蕨 er hui lian zuo jue

Archangiopteris bipinnata Ching, Icon. Filic. Sin. 5: t. 203. 1958.

Fronds 50-80 cm; stipes 60-70 cm, with 1 naked pulvinus, and 10-12 pairs of pinnae. Laminae once pinnate to bipinnate; pinnae 16-19 × 6-7 cm; pinnules 0-7 pairs, broadly lanceolate, 7-10 × 2.5-2.8 cm, bases cuneate, margins subentire, undulate, apices caudate. Veins obvious, false veins absent. Sori medial, ca. 4 mm from margin, extending to costule, 1-2 cm, composed of 20-40 sporangia. Exospores with forked rodlike ornamentation.

● Forests; 1100-1300 m. Yunnan (Maguan, Malipo).