Wojnowicia Sacc., Syll. fung. (Abellini) 10: 328 (1892).

            Pathogenic on monocotyledonous or dicotyledonous hosts. Sexual state: Unknown. Asexual state: Conidiomata pycnidial, scattered, solitary, immersed to superficial on host tissue, globose, glabrous or setose, dark brown, ostiole central, with minute papillate or pore-like opening. Conidiomata walls thick, composed of pseudoparenchymatous cells, outer layers thick-walled, arranged in textura angularis, dark brown, inner layers thin-walled, hyaline, thinner towards inner conidiogenous cells. Conidiophores reduced to conidiogenous cells. Conidiogenous cells enteroblastic, phialidic, discrete, determine, doliiform to ampulliform, hyaline, smooth-walled, with minute collarette and channel, lining inner cavity of conidiomata. Conidia phragmosporous, fusiform to cylindrical, with obtuse ends, pale brown to brown, continuous, septate, straight to curved, thin and smooth-walled, guttulate.

            Type species: Wojnowicia hirta (J. Schröt.) Sacc., in Saccardo & Sydow, Syll. fung. (Abellini) 14(2): 960 (1899).

         Phylogenetic study: De Gruyter et al. (2009), Wijayawardene et al. (2013b).

            Notes: Wojnowicia was introduced by Saccardo (1892) and is typified by W. hirta. The genus was discussed by Sutton (1975, 1980) who accepted two species, W. hirta and W. ephedrae Hollós. Sutton (1980) treated W. tenella Pat. and W. graminis (McAlpine) Sacc. & D. Sacc as synonyms of W. hirta. Farr and Bills (1995) named a collection from Juniperus deppeana Steud. and Pinus edulis Engelm. As W. colluvium D.F. Farr & Bills. Eleven species are listed in Index Fungorum (2014). Molecular data is only available for two species in GenBank. De Gruter et al. (2009) included two strains of Wojnowicia hirta in their analysis and showed that W. hirta belongs to Phaeosphaeriaceae. Wijayawardene et al. (2013b) introduced a new species, W. viburni Wijayaw. et al. on leaves of Viburnum utile Hemsl. ex Forb. & Hemsl. from China and confirmed that Wojnowicia belongs in Phaeosphaeriaceae. They also suggested that Wojnowicia should be the asexual state of Ophiosphaerella based on phylogenetic evidence (Wijayawardene et al. 2013b). However, Wijayawardene et al. (2013b) and De Gruyter et al. (2009) did not include many isolates of Phaeosphaeriaceae in their analysis. In this study with several sexual and asexual genera, the multigene phylogenetic analysis (Fig. 2) indicates that Wojnowicia hirta (CBS 160.73, CBS 295.69) clusters with Amarenomyces, Ophiosphaerella herpotricha (CBS 620.86) and other Phaeosphaeria sensu lato species while W. viburni forms a single clade at the base of Neostagonospora. Therefore the findings of Wijayawardene et al. (2013b) and De Gruyter et al. (2009) that Wojnowicia may be an asexual state of Ophiosphaerella is questionable, while Ophiosphaerella is obviously polyphyletic and requires further work.