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The leptosporangiate ferns are one of the four major groups of ferns, with the other three being the eusporangiate ferns comprising the marattioid ferns (Marattiidae, Marattiaceae), the horsetails (Equisetiidae, Equisetaceae), and whisk ferns and moonworts.
Cyatheaceae are leptosporangiate ferns, the most familiar group of monilophytes. [3] The Cyatheaceae usually have a single, erect or creeping rhizome (stem). Their fronds (leaves) are also very large, although not as large as the tree ferns of the Marattiaceae. Some species have fronds reaching 3–4 m in length, and have a final crown width of ...
Leptosporangiate ferns. There are 69 species in the class Polypodiopsida assessed as vulnerable. Polypodiales. There are 61 species in the order Polypodiales assessed ...
Below are lists of extant fern families and subfamilies using the classification scheme proposed by the Pteridophyte Phylogeny Group in 2016 (PPG I). [1] The scheme is based on molecular phylogenetic studies, and also draws on earlier classifications, [ 1 ] particularly those by Smith et al. (2006), [ 2 ] Chase and Reveal (2009), [ 3 ] and ...
The Dryopteridaceae are a family of leptosporangiate ferns in the order Polypodiales.They are known colloquially as the wood ferns.In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family is placed in the suborder Polypodiineae. [1]
Tectariaceae is a family of leptosporangiate ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family is placed in the suborder Polypodiineae. [1] Alternatively, it may be treated as the subfamily Tectarioideae of a very broadly defined family Polypodiaceae sensu lato. [2]
Hymenophyllum tunbrigense, the Tunbridge filmy fern [3] or Tunbridge filmy-fern, [4] is a small, fragile perennial leptosporangiate fern which forms large dense colonies of overlapping leaves from creeping rhizomes. The common name derives from the leaves which are very thin, only a single cell thick, and translucent, giving the appearance of a ...
Osmundastrum is genus of leptosporangiate ferns in the family Osmundaceae with one living species, Osmundastrum cinnamomeum, the cinnamon fern. It is native to the Americas and eastern Asia , growing in swamps, bogs and moist woodlands.