拟贯众属 ni guan zhong shu

Authors: Zhang Xianchun & David S. Barrington

Hemicardion Fée.

Plants terrestrial. Rhizome ascending, short, thick, bearing numerous scales on rhizome apex and stipe, smaller upward on rachis and lower side of costae; scales chestnut-brown, linear, margin toothed. Fronds tufted, bright bluish green above when fresh, narrowly elliptic-lanceolate, 1-pinnate; stipe and rachis not or only slightly channeled, not winged; pinnae alternate, mostly sessile, lowest pinnae shortly stalked, upper pinnae falcate, glabrescent adaxially, subentire, usually articulate to rachis; costa prominent above, not grooved; veins free, forked several times. Sori orbicular, dorsal on veinlets, in 1-4 rows on each side of costa; indusia peltate; spores bilateral, ellipsoid, with perispore folds, granular. n = 41.

Five or six species: tropical Asia and America; one species in China.

Lower Taxon

• Cyclopeltis crenata (Fée) C. Christensen