Kingdom Fungi Class Agaricomycetes Rank Species | Division Basidiomycota | |
 | ||
Similar Butyriboletus querciregius, Butyriboletus autumniregius, Butyriboletus persolidus, Butyriboletus abieticola, Butyriboletus pulchriceps | ||
Butyriboletus primiregius is a pored mushroom in the family Boletaceae. Found in California, where it grows in an mycorrhizal association with fir (genus Abies), it was described as new to science in 2014.
References
Butyriboletus primiregius Wikipedia(Text) CC BY-SA