biostudies-literatureUnknown201Fujiwara TA new species of the species-rich fern genus <i>Lepisorus</i> (Polypodiales, Polypodiaceae) has been found to occur in Shan state, Myanmar. <i>Lepisorusmedioximus</i> is described based on morphological characters and phylogenetic evidence. Phylogenetic analyses showed that the specimens of <i>L.medioximus</i> formed a distinct clade nested in the <i>Pseudovittaria</i> clade. The morphological comparison demonstrated that the species is distinct from phylogenetically related species, namely <i>L.elegans</i>, <i>L.contortus</i>, and <i>L.tosaensis</i>, in the morphology of the rhizome scales, size, and shape of the lamina, position of sori, and paraphyses.PhytoKeys23-34https://www.ebi.ac.uk/biostudies/studies/S-EPMC9848922biostudies-literature<i>Lepisorusmedioximus</i> (Polypodiales, Polypodiaceae), a new species from Shan State of Myanmar.PMC9848922Khine PKSchneider HShin THori KMurakami NFujiwara Tfalse<i>Lepisorusmedioximus</i> (Polypodiales, Polypodiaceae), a new species from Shan State of Myanmar.A new species of the species-rich fern genus <i>Lepisorus</i> (Polypodiales, Polypodiaceae) has been found to occur in Shan state, Myanmar. <i>Lepisorusmedioximus</i> is described based on morphological characters and phylogenetic evidence. Phylogenetic analyses showed that the specimens of <i>L.medioximus</i> formed a distinct clade nested in the <i>Pseudovittaria</i> clade. The morphological comparison demonstrated that the species is distinct from phylogenetically related species, namely <i>L.elegans</i>, <i>L.contortus</i>, and <i>L.tosaensis</i>, in the morphology of the rhizome scales, size, and shape of the lamina, position of sori, and paraphyses.2022-01-01T00:00:00Z20222025-04-18T21:16:11.822Z2025-04-07T09:15:00.588ZS-EPMC98489223676231610.3897/phytokeys.201.84911