Sutton and Dyko (1989) transferred H. toruloidea to Nattrassia mangiferae with the mycelial synanamorph named Scytalidium dimidiatum based on Torula dimidiata. Farr et al. (2005) concluded from a phylogenetic analysis that Nattrassia mangiferae and Scytalidium dimidiatum belong in Fusicoccum and introduced the name Fusicoccum dimidiatum to replace Scytalidium dimidiatum. Crous et al. (2006) in a taxonomic revision of the Botryosphaeriaceae concluded that Scytalidium is polyphyletic and proposed the genus Neoscytalidium to accommodate S. dimidiatum as N. dimidiatum. It has been suggested that S. dimidiatum and S. hyalinum might be conspecific and a new name (N. dimidiatum var. hyalinum) has been suggested (Madrida et al. 2009). Although Crous et al. (2006) included an isolate of S. hyalinum in their study, they were not aware at the time that the isolate is in fact linked to the isotype of S. hyalinum. Since S. hyalinum is phylogenetically indistinguishable from N. dimidiatum and is the older epithet we transfer S. hyalinum to Neoscytalidium and reduce N. dimidatum to synonymy. Diseases reported to be associated with this fungus tend to be more common in tropical countries. It has been associated with freeze-damaged limbs of Citrus spp. in California, and appears to be a wound pathogen of this host. In Italy, it causes a shoot blight, canker and gummosis disease of Citrus (Polizzi et al. 2009, 2011).