The most accessible identification route is via the keys to species arranged by host family, but the genus accounts also include more technical keys to their species. These keys use both anamorph and teliomorph characters.

The detailed species descriptions are followed by type details, general distribution, and European host range and distribution.

There are line drawings of most of the species in the plates at the back of the book.

Cleistothecia relatively straightforward, although it can be difficult to find sufficiently-ripe ascocarps.

Conidial stages often require careful microscopy, depending on whether you limit your consideration to the species known from that host.