Rhachidosorus | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Polypodiales |
Suborder: | Aspleniineae |
Family: | Rhachidosoraceae X.C.Zhang |
Genus: | Rhachidosorus Ching |
Species | |
Synonyms[1] | |
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Rhachidosorus is a genus of ferns in the order Polypodiales.[2] It is the only genus in the family Rhachidosoraceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[3] Alternatively, the genus may be placed in the subfamily Rhachidosoroideae of a more broadly defined family Aspleniaceae,[1] the family placement used in Plants of the World Online as of November 2019[update].[4]
The genus was described by Ren Chang Ching in 1964, with about 7 species in eastern and southeastern Asia, including Japan, the Philippines, and Sumatra.[5] As of November 2019[update], Plants of the World Online accepted the following species:[4]
The following diagram for the eupolypods II, based on Lehtonen, 2011,[6] and Rothfels & al., 2012,[7] shows a likely phylogenic relationship between the Rhachidosoraceae and the other families of the eupolypods II clade.