Ceratostomella Sacc., Michelia 1(4): 370 (1878), Mycologia 98(1): 75 (2006)
Index Fungorum number: IF901; 14 morphological species (Species Fungorum 2020), 2 species with sequence data.
Type species – Ceratostomella rostrata (Tode: Fr.) Sacc.
Notes – Ceratostomella is a well-established genus that comprises 112 epithets in Index Fungorum (2020). Ceratostomella was redescribed based on the lectotype species C. rostrata and three other species were accepted, i.e. C. cuspidate, C. pyrenaica and C. rhynchophora. Other species attributed to the genus that do not match the emended generic concept were revised. Ceratostomella species with evanescent asci were transferred to Microascales and Ophiostomatales (de Beer et al. 2013, 2014). Ceratostomella species with persistent asci were revised by Réblová (2011) and Réblová et al. (2018). Many species were excluded from Ceratostomella, some were accommodated in other genera, and some remain as species of uncertain status and cannot presently be reassigned (de Beer et al. 2013, 2014, Réblová et al. 2011, 2018).