密脉莲座蕨 mi mai lian zuo jue

Fronds 1.5-2 m; stipes tuberculate. Laminae bipinnate; pinnae ca. 60 × 20-25 cm, with 12-20 pairs of pinnules; pinnules 4-10 × 1.5-3 cm, bases rounded to truncate, margins serrate, apices shortly acuminate. Veins obvious, 20-22 lateral veins per cm, false veins absent. Sori ca. 0.5 mm from margin, composed of 8-12 sporangia.

Forests; 100-200 m. Yunnan (Hekou) [N Vietnam].