A recent collection of Excipularia fusispora, unknown from Britain for 121 years, is described and illustrated. Emended generic descriptions for Excipularia and Scolicosporium, both considered monotypic, are provided. Differences between the two genera, a source of confusion in the literature, are elucidated and their taxonomic positions discussed. Excipulariopsis gen. nov. is established for Excipularia narsapurensis, and a key to this and similar genera is offered. The relationship between Scolicosporium fagi and Asterosporium asterospermum is discussed, and notes on the remaining species of Excipularia and Scolicosporium are given. S. betulae and S. fusarioides are considered synonyms of E. fusispora.