Family: Tricholomataceae
Genera currently placed in the Tricholomataceae that are known to occur in Santa Cruz County are listed below.
- Arrhenia
- Callistosporium
- Caulorhiza
- Clitocybe
- Collybia
- Dendrocollybia
- Lepista
- Leucopaxillus
- Melanoleuca
- Myxomphalia
- Phyllotopsis
- Pseudobaeospora
- Pseudoclitocybe
- Rimbachia
- Tricholoma
- Tricholomopsis