New records of Pleosporales (Ascomycota) for Mexico

The purpose of the manuscript is to increase the knowledge of Pleosporales, a group of fungi so far little known in the country. The material studied comes mainly from a cloud forest of the central region of the state of Veracruz. The taxonomic study of four species of Ascomycota: Fissuroma aggregata (I. Hino et Katum.) Phookamsak, J.K. Liu, E.B.G. Jones et K.D. Hyde, Immotthia atrograna (Cooke et Ellis) M.E. Barr, Xenolophium applanatum (Petch) Huhndorf and X. guianense Huhndorf, belonging to the genera Fisuroma, Immotthia, and Xenolophium (Dothideomycetes, Pleosporales); both genera and species studied are new records for Mexico. Descriptions and illustrations of the macro and micromorphological characteristics of the studied taxa are included.