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Polypodiaceae


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A family of leptosporangiate ferns, in which the sori are mixed, superficial on the lower surface of fronds, and usually rounded. They have a cosmopolitan distribution. In the wider sense, some 170 genera and several thousand species were included, but in the present-day classification (J. A. Crabbe and A. C. Jermy, Fern Gazette 11, 1975) the family is restricted to 56 genera.

Subjects: Plant Sciences and Forestry.


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