New species and additional records of Coenogonium (Ostropales : Coenogoniaceae) from southern South America

Abstract

Four new species of lichenized fungi from northern Argentina are described and illustrated: Coenogonium albomarginatum Michlig & L. I. Ferraro, C. brasiliense L. I. Ferraro & Michlig, C. flavovirens L. I. Ferraro & Michlig, and C. verrucosum Michlig & L. I. Ferraro. In addition, C. isidiatum (G. Thor & Vezda) Lücking et al., C. magdalenae Rivas Plata, Lücking & Lizano, C. persistens (Malme) Lücking et al., C. pusillum (Mont.) Lücking et al., and C. weberi (Vezda) Lücking et al. are recorded for the first time from South America. The known distribution of 24 species of this lichen genus is extended. A revision of the genus in Argentina and Paraguay is also presented.