Lophiostoma Ces. & De Not., Comm. Soc. crittog. Ital. 1(fasc. 4): 219 (1863).
MycoBank number: MB 2933; Index Fungorum number: IF 2933; Facesoffungi number: FoF 00403; 110 morphological species (Species Fungorum 2020), 25 species with molecular data.
Type species – Lophiostoma macrostomum (Tode) Ces. & De Not.
≡ Sphaeria macrostoma Tode, Fung. mecklenb. sel. (Lüneburg) 2: 12 (1791).
Notes – Lophiostoma is somewhat similar to Lophiotrema and Chesters & Bell (1970) treated Lophiotrema as a synonym of Lophiostoma. Lophiostoma is distinguished from Lophiotrema by its peridium and asci (Holm & Holm 1988), while Hirayama & Tanaka (2011) separated them based on both molecular and morphological studies. Lophiostoma shares similar characteristics with Platystomum. Holm & Holm (1988) treated Platystomum as a synonym of Lophiostoma but Barr (1990a) and Tanaka & Harada (2003b) mentioned Lophiostoma and Platystomum as two separate genera.