In a survey of the species pertaining to genera of large parmelioid lichens occurring in the coastal areas of the center-south coast of São Paulo State, Brazil, four species of Parmotrema A. Massal. with medullar fatty acids (P. ciliiferum, P. cf. cryptoxanthoides, P. melanothrix, and P. praesorediosum) and one containing medullar atranorin (P. mordenii) were found. Identification key, descriptions, commentaries, and illustrations based on collected material are provided for these species.
fatty acids; mangrove; Parmotrema; restinga
