Taxonomic Re-Examination of Nine Types (Ascomycota, Xylariales) Stored in the Saccardo Mycological Collection.

In a recent monograph on the genus , type specimens worldwide were revised and re-classified using a morphological approach. Among them, some came from Pier Andrea Saccardo's fungarium stored in the Herbarium of the Padova Botanical Garden. In this work, we taxonomically re-examine via a morphological and molecular approach nine different Saccardo types. ITS1 and/or ITS2 sequences were successfully obtained applying Illumina MiSeq technology and phylogenetic analyses were carried out in order to elucidate their current taxonomic position. Only the ITS1 sequence was recovered for , while for , only the ITS2 sequence was recovered. We proposed here new combinations for , and , while for , , , and , we did not suggest taxonomic changes compared to the current ones. The name Sacc. is invalid, as it is a later homonym of P. Karst. & Starbäck. Therefore, we introduced as a nomen novum for Sacc. This is the first time that these types have been subjected to a molecular study. Our results demonstrate that old types are an important source of DNA sequence data for taxonomic re-examinations.