Cytospora Ehrenb., Sylv. mycol. berol. (Berlin): 28 (1818)

MycoBank number: MB 7904; Index Fungorum number: IF 7904; Facesoffungi number: FoF 01378; 297 morphological species (Species Fungorum 2020), 117 species with sequence data.

Type speciesCytospora chrysosperma (Pers.) Fr.

NotesCytospora was introduced by Ehrenberg (1818). The genus contains important pathogens causing canker and dieback disease of a wide range of plants (Adams et al. 2005, 2006, Hyde et al. 2016b, Norphanphoun et al. 2017). Recent accounts of the genus have been published with several new taxa (Norphanphoun et al. 2017, 2018, Tibpromma et al. 2017b, Senanayake et al. 2017a, Hyde et al. 2017b). Cytospora cedri is illustrated in this entry (Fig. 89).

Figure 89 Cytospora cedri (Material examined – ITALY, on branches of Rubus sp., Erio Campesori IT3288, MFLU 17-0835). a Stromatal habit in wood. b Fruiting bodies on host surface. c Surface of fruiting bodies showing the black ostioles. d Cross section of the stroma showing conidiomata. e Peridium. f Ostiolar neck. g, h Conidiogenous cell containing conidia. i Conidia. Scale bars: d = 100 µm, e, f = 20 µm, g-i = 5 µm.