Abstract
The family Hypoxylaceae has a cosmopolitan distribution with greater diversity in tropical regions, its growth habit is saprotrophic, endophytic and potentially phytopathogenic. From the revision of herbarium specimens and field collections from the Yucatan Peninsula, two new species were described: Annulohypoxylonfusisporum, characterized by having fusiform spores and Hypoxylonxmatkuilense which is distinguished by having stromata vinaceous and dark brown KOH-extractable pigments. The species are described based on morphological characters and Bayesian Inference analyses of four molecular markers (ITS, LSU, RPB2 and TUB2). In addition, one new record from Mexico is presented: Hypoxylonbellicolor. The presence of Daldiniaeschscholtzii, H.lenormandii, H.lividipigmentum and Entonaemaliquescens is confirmed with molecular data.