Camarops

Abstract: In the most recent edition of the Dictionary of the Fungi (Kirk et al., 2001), the genus Diatrype Fr. was listed as comprising 56 species. This number corresponds exactly to the figure given in the monograph by Rappaz (1987b) that is the most comprehensive recent study of the genus. The earlier treatment of Diatrype by Berlese (1900) included approximately the same number of species, but the latter is rather outdated and some of the species considered clearly do not belong in the genus Diatrype. For example, the taxon treated as Diatrype tristicha De Not. by Berlese is a diaporthalean fungus and thus is more correctly recognized as Valseutypella tristicha (De Not.) Höhn. However, Berlese's monograph does provide excellent illustrations for many of the valid members of the genus. The concept of Diatrype as delimited by Rappaz (1987b) is somewhat problematic, with in some instances no clear separation between this genus and either Eutypa Tul. & C. Tul. or Eutypella (Nitschke) Sacc. To cite an example, he treats Diatrype acericola De Not. as a member of Eutypella, while Eutypa flavovirens (Per.: Fr.) Tul. & C. Tul. is considered as belonging to Diatrype. His key to the diatrypaceous genera is inconsistent in its application of the