Phylogeny of Calonectria and selected hypocrealean genera with cylindricalmacroconidia

This study employs DNA sequence analysis to infer the phylogeny of Calonect ria species and species of other hypocrealean genera with cylindrical macro conidia. The taxonomy of Cylindrocladiella species was also investigated. C alonectria forms a monophyletic lineage, as do the anamorph genera Cylindro cladiella, Cylindrocarpon, Curvicladium, Gliocephalotrichum, Gliocladiopsis and Xenocylindrocladium. Based on molecular data and distinctive anamorph morphology, new holomorph genera are proposed for the teleomorphs of Cylind rocladiella (Nectricladiella), Gliocladiopsis (Glionectria) and Xenocylindr ocladium (Xenocalonectria). The data also support the recognition of previo usly proposed holomorph genera for Cylindrocarpon (Neonectria) and Glioceph alotrichum (Leuconectria). To date, no teleomorph has been reported for Cur vicladium cigneum, although our results suggest that C. cigneum is closely related to Xenocalonectria. Eight species of Cylindrocladiella are recogniz ed, with two having known teleomorphs in Nectricladiella, namely N. camelli ae (Cylindrocladiella microcylindrica) and N. infestans (Ce. infestans). A key to holomorph genera, based primarily on anamorphic characters, is appen ded.