Octospora 'humosa group'

The fruitbody is disk-like to somewhat cup-like, orange, without a stem and up to 15 millimetres in diameter (though often markedly less). The margin is raised and is toothed or with a frill-like edge.

The fruitbodies appear on the ground amongst or near the bryophytes they parasitize.

Apart from Octospora humosa there are number of related species (some still un-named) that make up the 'humosa group'.   

Look-alikes

Species of Lamprospora, Neottiella and other Octopsora species are macroscopically similar and a microscopic examination is necessary to identify a specimen.