@ARTICLE{TreeBASE2Ref17572, author = {Mikhail V. Sogonov and Lisa A. Castlebury and Amy Y. Rossman and James F. White}, title = {The type species of Apiognomonia and its anamorph Discula}, year = {2006}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Mycological Research}, volume = {}, number = {}, pages = {}, abstract = {Species of Apiognomonia and their Discula anamorphic states in the Gnomoniaceae, Diaporthales, are known throughout the temperate northern hemisphere and cause diseases such as sycamore or plane tree anthracnose. The genus Apiognomonia was described based on A. veneta as the type species; however, there has been disagreement about whether or not A. veneta is a synonym of A. errabunda. Using morphological, ecological and DNA sequence data we conclude that A. errabunda and A. veneta are different species, although very closely related, thus A. veneta is the correct name for the type species of Apiognomonia. This conclusion is based on a combined analysis of sequences from the ITS region of the nuclear rDNA for 50 isolates from host plants of eight different genera and intron regions from actin, calmodulin and translation elongation factor 1-alpha for over 25 isolates. Similarly, the type species of the genus Discula is D. nervisequa, the earliest available epithet for D. platani, the lectotype of Discula. Discula nervisequa is the anamorph of A. veneta. Based on an examination of the type specimen, we determined that the commonly used name for the anamorph of A. errabunda, D. umbrinella, refers to another species. Therefore, a new combination, D. tiliae, is proposed for the anamorph of A. errabunda. Apiognomonia veneta and A. errabunda and their anamorphs are described and illustrated. An account of all synonyms and excluded synonyms is presented.} }

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