Polypodiopsida

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Polypodiopsida

[‚päl·i‚päd·ē′äp·səd·ə]
(botany)
A class of the division Polypodiophyta; stems of these ferns bear several large, spirally arranged, compound leaves with sporangia grouped in sori on their undermargins.
References in periodicals archive ?
FC: frequency of citation; Cl: cultural importance index Families and Status Local name species (voucher or (1) digital photograph number) PTERIDOPSIDA (= FILICOPSIDA) Hypolepydaceae Pteridium aquilinum W Helecho, fenecho, (L.