Species of Parmotrema (Parmeliaceae, Ascomycota) of the central-southern coast of São Paulo State V: alectoronic chemical group

In a survey of the species pertaining to genera of large parmeliae occurring in the coastal areas of the center-south coast of São Paulo State, Brazil, eight species of Parmotrema A. Massal. sensu stricto (foliose thalli with rounded lobes usually more than 0.5 cm wide with nude lower margins) containing alectoronic acid as main medullar substance were found. Identification key, descriptions, comments, and illustrations based on Brazilian material are provided for these species.

lichens; mangrove; restinga; rocky shores