01490nas a2200193 4500008004100000022001900041245015400060210006900214260001200283490000700295520084000302653002001142653002001162653001501182653001901197653001301216100001601229856005101245 2020 eng d aISSN 2657-500000aChrysothrix bergeri (Ascomycota: Arthoniales: Chrysothricaceae), a new lichen species from the southeastern United States, the Caribbean, and Bermuda0 aChrysothrix bergeri Ascomycota Arthoniales Chrysothricaceae a ne c12/20200 v653 a

A crustose lichen species new to science – previously characterized in the literature but unnamed – is formally described. This new species, Chrysothrix bergeri sp. nov., ranges from the southeastern United States southwards to the Caribbean islands (Bahamas and Cuba) and eastwards to Bermuda. It is most easily confused with C. xanthina, from which it differs in both chemistry and ascospore shape. Bilimbia aurata and Bilimbia stevensoni are both confirmed as synonyms of C. xanthina. A lectotype is selected for Bilimbia aurata. Solvent E is recommended for the chromatographic separation of leprapinic and pinastric acids – two lichen secondary products critical for diagnosing certain species of Chrysothrix, including C. bergeri.

10aArthoniomycetes10aleprapinic acid10aNeotropics10apinastric acid10ataxonomy1 aLaGreca, S. uhttps://bermudalichens.myspecies.info/node/969