New lichen species P. paraisoense shows unique features in cerrado habitats, highlighting biodiversity.
A new species of Parmotrema, with medullary lecanoric acid (P. paraisoense), is proposed here. It features a foliose thallus with linear interrupted to subcapitate soralia, occurring mainly on the margins of the lobes. The lobes are 4-8 mm wide, with a ciliate margin, and contain atranorin and lecanoric acid as the main secondary metabolites. This species has a corticolous habit and was found on a fallen tree branch in a cerradão area, a typical vegetation of the Cerrado biome, in the Brazilian state of Maranhão.
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Cunha-Dias et al. (2025) studied this question.
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