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Araiostegia

Description from Flora of China

Araiostegiella M. Kato & Tsutsumi.

Plants moderate-sized, epiphytic or growing on moss-covered rocks or old trunks. Rhizome long creeping, with a ring of 2 larger vascular bundles and 6-10 smaller ones, densely scaly; scales rufous, ovate to lanceolate, peltate, thin. Fronds remote or approximate; stipe purple or slightly purple, glabrous or scaly, with a ring of 2 large bundles and 4 smaller ones; lamina finely dissected, broadly ovate or narrowly ovate, deltoid, thinly papery, glabrous. Sori submarginal, small, terminal on veinlet; indusium small, membranous, semicircular or orbicular-reniform, attached only at base, long stalked; annulus longitudinal, consisting of 12-14 thickened cells; spores elliptic, translucent, usually without perispore. n = 10, (40).

About ten species: mostly in SW China, west to India and Myanmar; four species (one endemic) in China.

Lower Taxon


 

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