附着实蕨 fu zhuo shi jue

Rhizome climbing on tree trunks more than 2-3 m in height, 1-1.5 cm in diam., densely scaly; scales nut-brown, lanceolate, 3-4 mm, margin maple-colored, entire. Fronds close together; sterile fronds pinnate; stipe 16-20 cm, near base ca. 4 mm in diam., grooved adaxially, sparsely scaly below middle; lamina gray-brown when dry, ovate, 35-40 × 20-25 cm, widest somewhat below middle, thickly papery; pinnae 2- or 3-paired, subsessile, elliptic-lanceolate, 15-18 × 4-5 cm, base rounded-cuneate, margin slightly undulate, apex caudate-acuminate, lowermost 2 pinnae subopposite, terminal segment larger than central pinnae; secondary veins prominent abaxially, parallel and 6-7 mm apart; veins inconspicuous on both surfaces, forming a narrow costal areole and 3 or 4 rows of distal areoles, sometimes with included free veinlets. Fertile fronds 40-60 cm; lamina narrowly ovate, 25-30 × 10-12 cm; pinnae 3 or 4 pairs, subsessile, broadly lanceolate, 10-12 × 2-2.5 cm, apex acuminate. Sporangia inserted throughout abaxial surface, arrangement fully acrostichoid.

● Climbing on tree trunks in forests; ca. 700 m. S Yunnan.

Bolbitis scandens is similar to B. heteroclita; it differs in having the rhizome climbing on tree trunks, lateral pinnae of sterile fronds usually 3-paired, terminal pinnae never obviously prolonged, and lamina texture thickly papery.