Verticillate Cladonia species (Lichenized Ascomycota) from high-altitude environments of Serra do Mar in Southern Brazil

In a survey of the species of Cladonia occurring in high-altitude environments of Serra do Mar in Southern Brazil, eight species with verticillate podetia were found. Cladonia clathrata and C. imperialis are new records for the Southern Brazil; C. flagellaris, C. penicillata, and C. verticillaris are new for the State of Santa Catarina; C. calycanthoides and C. rappii are new for the State of Paraná. Detailed descriptions, an identification key, illustrations, and taxonomical remarks are provided