Diaporthe angelicae comb. nov., a modern description and placement of Diaporthopsis in Diaporthe

Abstract

The genus Diaporthopsis was described for species that are similar to Diaporthe but have nonseptate ascospores. The type species of Diaporthopsis is D. angelicae, an earlier name for D. nigrella. Molecular analysis of the large subunit of the nuclear ribosomal DNA places D. angelicae within a group that includes the type and many other species of Diaporthe. In addition, D. angelicae is similar in stromatal, perithecial, and centrum morphology to species of Diaporthe. Based on morphological and molecular data, Diaporthopsis angelicae is transferred to Diaporthe and the genus Diaporthopsis is considered a synonym of Diaporthe. A description and illustrations of D. angelicae are presented, and an epitype specimen is designated.