Lecanora sorediomarginata, a new epiphytic lichen species discovered along the Portuguese coast

Abstract

AbstractLecanora sorediomarginataRodrigues, Terrón & Elix sp. nov., described as new to science from Portugal, is characterized morphologically by a crustose whitish-grey to greenish thallus developing soralia from small, marginal warts and chemically by the presence of 3,5-dichloro-2′-O-methylnorstenosporic acid [major], 3,5-dichloro-2′-O-methylanziaic acid [minor], 3,5-dichloro-2′-O-methylnordivaricatic acid [minor], 5-chloro-2′-O-methylanziaic acid [trace], atranorin [minor], chloroatranorin [minor], and usnic acid [trace]. It is chemically similar toL. lividocinerea, to which it shows phylogenetic affinities based on ITS rDNA sequence analysis, and toL. sulphurella.Lecanora sorediomarginatais epiphytic onPinus pinasterandP. pinea, in pine forests on sand dunes along the Portuguese coast.