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 ?
Azolla is a small free floating aquatic fern belong to Phylum-Pteridophyta, Class Polypodiopsida, Order Salviniales, Family Azollaceae with a monotypic genus (Wagnar, 1997).
X X Verbenaceae Lantana scabiosiflora Kunth X Verbena litoralis Kunth X Polypodiopsida Pteridaceae Adiantum poiretii Wikstr.
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.
Class 3 Polypodiopsida (Filicinophyta, Pterophyta, Pterodatina, Pteridophyta, Psilophytes, Psilopsids, Ferns, Whisk Fern)