Diaporthe juglandicola sp nov (Diaporthales, Ascomycetes), evidenced by morphological characters and phylogenetic analysis

Diaporthe juglandicola sp. nov, collected from diseased branches of Juglans mandshurica in Beijing, China, is described and illustrated in this paper. Evidence for this new species is provided by its holomorphic morphology and phylogenetic analysis. Morphologically, the asexual morph produces hyaline, aseptate, ellipsoidal, alpha conidia (8.1-8.7 x 2.3-2.9 mu m), while the sexual morph produces 8-spored, unitunicate, clavate to cylindric asci and fusoid, 0-1-septate ascospores. The phylogeny inferred from combined multi-locus sequences (CAL, HIS, ITS, TEF1-alpha, TUB) grouped the isolates of the new species into a distinct lineage.