Polypodiopsida

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 ?
Ferns including Psilotopsida, Equisetopsida, Marratiopsida, and Polypodiopsida are currently the second most species rich plant clade after angiosperms and are characterized by large diploid base numbers and hybrid swarms.
Species Families Genera Native Non Native Total Polypodiopsida (ferns) 4 4 4 0 4 Pinopsida (gymnosperms) 1 1 1 0 1 Liliopsida (monocots) 14 50 90 22 112 Magnoliopsida (dicots) 64 182 206 33 239 Totals 83 237 301 55 356 Table 2.
Polypodiopsida Magnoliopsida Liliopsida Total Families 1 54 11 66 Genera 1 148 39 188 Species 1 182 60 243 Native species 1 170 52 223 Introduced species 0 12 8 20
The general term for ferns in Guarani is amambdi and this includes those species in the class Polypodiopsida.