勐腊凤尾蕨 meng la feng wei jue

Plants ca. 60 cm tall. Rhizome erect, short, apex densely clothed with brown scales. Stipe firm, straw-colored, ca. 27 cm × 2 mm, glabrous; lamina 1-pinnate, oblong in outline, up to 30 × ca. 15 cm; pinnae 4 or 5 pairs, subalternate, decumbent, linear-lanceolate, basal pair up to 17 × 1-1.3 cm, stalked (ca. 1 cm), base rounded-cuneate, margins entire and cartilaginous, apex acuminate; upper two pairs of pinnae with base cuneate, connate with rachis, not decrescent, stalked; midvein prominent abaxially, straw-colored; veins dense, simple or 2-forked; lamina blue-green, papery when dried, abaxially sparsely hairy near midvein.

● Open forests; ca. 700 m. S Yunnan (Mengla).