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(buckler ferns, shield ferns; family Aspleniaceae)

A genus of ferns in which the rhizome is short, stout, and scaly, with leaves in a crown, much pinnately divided. The sori are superficial, rounded, and with kidney-shaped indusia. There are about 150 species, found mainly in northern temperate regions but also widespread in the tropics.

Subjects: Plant Sciences and Forestry.

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