Enterosora

Enterosora is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). PPG I also recognizes the genus Zygophlebia, which more recent sources include in "Enterosora". , many do not have formally published names in "Enterosora" and are retained here in "Zygophlebia".
Taxonomy.
The genus "Enterosora" was created by John Gilbert Baker in 1886 with the type species "Enterosora campbellii". The genus "Zygophlebia" was created by L. Earl Bishop in 1989 with the type species "Zygophlebia sectifrons", formerly placed in "Polypodium". Molecular phylogenetic studies have shown that "Enterosora" is nested within "Zygophlebia", which could be resolved by synonymizing "Zygophlebia" with "Enterosora". In 2016, the authors of the PPG I classification considered merging the genera to be premature. A further study was published in 2019. This showed that "Enterosora" s.s. was monophyletic, but embedded within two clades of "Zyglophlebia", with "Ceradenia" the sister of "Enterosora" s.l.:
The "Checklist of Ferns and Lycophytes of the World" has recognized the merger of "Zygophlebia" into "Enterosora". However, , many former "Zygophlebia" species do not have formally published names in "Enterosora", so are retained here "Zygophlebia".
Species.
, the "Checklist of Ferns and Lycophytes of the World" ("CFLW") accepted the following species. Species placed in "Zygophlebia" but accepted in "Enterosora" by "CFLW" are listed separately.
Many of the species placed in "Zygophlebia" in the PPG I system do not yet have published names in "Enterosora" and so have "comb. ined." in "CFLW". All are retained here in "Zygophlebia":
Distribution.
When circumscribed to include "Zygophlebia", the genus "Enterosora" is widely distributed in the Neotropics and tropical Africa, including Madagascar and the Mascarene Islands. The species which Bishop placed in "Zygophlebia" were mainly native to the Neotropics, with a few African species.