Eight Caloplaca species newly recorded from Bolivia, including C. crocina comb. nov.

Eight species of Caloplaca s. lat. are reported as new to Bolivia: Caloplaca baueri, C. cinnabarina, C. crocina, C. darbishirei, C. ochraceofulva, C squamosa, C. subsoluta, and C. texana. Caloplaca texana is also reported as new for Peru and the Southern Hemisphere. The new combination Caloplaca crocina is proposed and compared with other Caloplaca spp. producing hourglass-shaped ascospores. Taxonomic notes and data on the distribution and habitat preferences are presented for all treated species.