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Loxsomaceae A family of ferns in which the much-divided fronds arise from creeping, hairy rhizomes and have their sori, which are of gradate type, in cup-like indusia terminally on the leaf veins on the leaf margins. The sporangia have a complete oblique annulus. There are 2 genera: Loxsoma, with only 1 species, in New Zealand, and Loxsomopsis, with 3 species, in Central and S. America.