Description from Flora of China
Plants mostly epiphytic. Rhizome stout, long creeping, usually with brown multicellular hairs. Lamina pinnately compound, entire, not thickened at margin. Sori terminal on veinlets; involucres projecting from fronds, tubular to cup-shaped, entire at mouth; receptacles projecting, filiform.
Vandenboschia subclathrata K. Iwatsuki, Acta Phytotax. Geobot. 17: 70. 1958.
琉球瓶蕨 liu qiu ping jue
Crepidomanes subclathratum (K. Iwatsuki) K. Iwatsuki; Trichomanes subclathratum (K. Iwatsuki) C. V. Morton.
Plants 6-10 cm tall. Rhizome ca. 0.3 mm in diam., irregularly branching, densely covered with brown to dark brownish hairs, with sparse rootlets. Stipes remote, 1-2 cm apart, 0.5-5 cm, winged nearly to base, wings often sharply crisped. Rachis and costae both winged throughout, wings sharply crisped. Lamina bipinnate to tripinnatifid, ovate to subdeltoid, membranous and transparent; pinnae 4-10 pairs, ovate, 2-4 × ca. 1 cm; ultimate segments narrow, less than 1 mm wide, margin entire, apex rounded to ± acute. Sori terminal on ultimate segments; involucres cup-shaped, tubular, or campanulate, with narrow wings; lips broader, truncate; receptacles long projecting.
On wet moss-covered rocks in open valleys or along streams in dense evergreen forests. ?Hainan [Japan].
About 35 species: tropics and subtropics of both the Old and New Worlds; seven species (two endemic) in China.