Loxogrammoideae is a small subfamily of the fern family Polypodiaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), with two genera, Dictymia and Loxogramme. The subfamily was previously considered to be a separate family, Loxogrammaceae , and is also treated as the tribe Loxogrammeae within a very broadly defined family Polypodiaceae sensu lato. Molecular phylogenetic studies place the group within Polypodiaceae.Christenhusz et al.: A linear sequence of extant families and genera of lycophytes and ferns Phytotaxa 19: 7-54. (18 Feb. 2011)
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