大叶瓶蕨 da ye ping jue

Trichomanes maximum Blume, Enum. Pl. Javae 2: 228. 1828; Crepidomanes maximum (Blume) K. Iwatsuki; T. miyakei Yabe.

Plants usually large, epiphytic. Rhizome black, ca. 3 mm in diam., densely covered with black multicellular hairs when young, hairs caducous, often with axillary hairy buds. Stipes remote, 1-2.5 cm apart, smoke-colored, 15-30 cm × 1.5-2 mm, winged nearly to base, sparsely hairy at base, glabrous upward. Lamina tripinnate to quadripinnatifid, oblong-lanceolate or ovate, 20-35 × 10-15 cm, membranous, glabrous; pinnae 10-15 pairs, alternate, ovate-oblong, 8-12 × 2-3 cm, basal ones shortened. Veins dichotomous, light smoke-colored, obviously raised on each surface, glabrous. Sori apical on acroscopic segments; involucres narrowly tubular to funnel-shaped, 2-2.5 mm, narrowly winged, dilated at mouth; receptacles projecting, 1-2 mm. 2n = 72.

On wet muddy rocks or on wet sandy ground near streams in dense dark forests; 300-400 m. Taiwan [Japan (Ryukyu Islands), Malesia, Thailand, Vietnam; Australia, Pacific islands (Melanesia, Micronesia, Polynesia)].