Small specimens of the latter are superficially similar, but can be distinguished by a veil, that breaks up into erect cap scales, the presence of an annulus, and microscopically by spores that are smaller, usually with a central germ pore. Another close relative of Coprinus calyptratus, is C. xerophilus. This smallish species, like Coprinus calyptratus, is found in dry habitats, particularly in the Great Basin,