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Nectria (Fr.) Fr. 1849
Many species have been described under the genus Nectria, but most of them have been transferred to other genera subsequently. Only around 30 species have been retained during a taxonomic revision in 2012 (Hirooka et al., 2012).
The species of Nectria are found in temperate regions of the northern hemisphere. Most are weakly pathogenic on hardwood trees and woody shrubs. The genus is closely related to the genera Allantonectria and Pleonectria, but the species lack the bright yellowish ascomata of those genera.
Type species: Nectria cinnabarina
The following species are currently entered in the system: