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Paragyrodon sphaerosporus
Paragyrodon sphaerosporus photographed by Nhu Nguyen, July 19, 2014 in Minneapolis, Minnesota.

Paragyrodon sphaerosporus

Paragyrodon spherosporus is a mushroom that is distributed throughout the upper Midwest of North America. It is an ectomycorrhizal fungus that typically associates with oaks. The squat, boletoid appearance and very thick and slimy partial veil makes it appear superficially like a Suillus (Smith and Thiers 1971), but genetic evidence places it in the Paxillaceae, a distance away from Suillus (Nuhn et al. 2013). The sequencing of its genome provides a comparison of a taxon that has morphological similarities to a much more expansive genus Suillus.

This genome is part of the Community Science Program (Proposal 502931) “A genome atlas of the ectomycorrhizal genus Suillus: Phylogenetic diversity and population genomics of a keystone guild of symbiotic forest fungi”, a collaborative effort aimed at using genomics data to understand and connect the evolutionary history, ecology, and genomic mechanisms of mutualistic ectomycorrhizal symbionts and their Pinaceae hosts. Please contact the PI for permission prior to the use of any data in publications.


Nuhn, M. E., Binder, M., Taylor, A. F. S., Halling, R. E., and Hibbett, D. S. (2013). Phylogenetic overview of the Boletineae. Fungal Biol. 117, 479–511. doi:https://doi.org/10.1016/j.funbio.2013.04.008.

Smith AH, Thiers HD, 1971. The Boletes of Michigan, 1st edn. University of Michigan Press, Ann Arbor, Michigan.