Algunas especies saprobias de Dothideomycetes y Lecanoromycetes (Pezizomycotina: Ascomycota) en México

We present a taxonomic study of six saprophytic ascomycetes, belonging to the orders Hysteriales, Lecanorales and Patellariales with apothecioid ascoma. The species: Dactylospora stygia var. tenuispora, Hysteropatella clavispora, Rhizodiscina lignyota y Tryblidaria fenestrata are first records from Mexico, while D. stygia var. stygia and Patellaria atrata are added to the catalog of known Ascomycota of Veracruz. Relevant illustrations and photographs of macro and micromorphological characters, as well as a dichotomous key to identify the treated species are included.