墨兰瓶蕨 mo lan ping jue

Trichomanes cystoseiroides Christ ex Tardieu & C. Christensen, Bull. Mus. Natl. Hist. Nat., sér. 2, 6: 385. 1934; Crepidomanes cystoseiroides (Christ ex Tardieu & C. Christensen) K. Iwatsuki; Vandenboschia assimilis Ching & P. S. Chiu.

Plants 30-50 cm tall. Rhizome dark brown, 1.5-2.5 mm in diam., stiff, densely covered with dark brown multicellular hairs. Stipes remote, 2-5 cm apart, 4-10 cm × ca. 1 mm, winged nearly to base, hairy at base, glabrous upward. Rachis winged throughout, glabrous. Lamina bipinnate to tripinnatifid, ovate-lanceolate or broadly lanceolate, 15-35 × 4-8 cm, herbaceous to membranous, glabrous; pinnae 15-20 pairs, alternate, sessile, oblong-ovate to oblong-lanceolate, base unequally cuneate, apex obtuse to acuminate; ultimate segments closely spaced, oblong-linear, 1-2 × 0.8-1 mm, with a single veinlet, margin entire, apex rounded. Veins dichotomous, dark green-brown, obviously raised on each surface, glabrous. Sori on short axillary lobes usually near pinnule rachis; involucres funnel-shaped or tubular, narrowly winged, usually dilated at mouth, lobed, lips often revolute; receptacles projecting, brown, ca. 2 mm.

On rocks or tree trunks near streams; 300-500 m. Hainan, SE Yunnan [N Vietnam].