Known as the 'Oysterlings', the genus Crepidotus consists of small, stemless mushrooms that grow on dead wood, usually shaped like tiny fans or shells, and are recognized by their brown spore prints. They are common and fruiting bodies can be found alone or in large numbers.

References

Hesler, L. R., & Smith, A. H. (1965). North American species of Crepidotus (pp. 3-161). New York, NY, USA:: Hafner Publishing Company. Retrieved from https://www.mykoweb.com/Crepidotus/North_American_species_of_Crepidotus.pdf

Kuo, M. (2023, August). The genus Crepidotus. Retrieved from the MushroomExpert.Com Web site: http://www.mushroomexpert.com/crepidotus.html