Caloboletus firmus

Caloboletus firmus is a bolete fungus native to North America. Until 2014, it was known as Boletus firmus. Changes^[1][2] in the phylogenetic framework of the family Boletaceae prompted the transfer of this species, along with several other related boletes, including Caloboletus calopus, to the genus Caloboletus.^[3] It was first described scientifically in 1874 by American botanist Charles Christopher Frost from specimens collected in New England.^[4]

Caloboletus firmus
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Boletales
Family:	Boletaceae
Genus:	Caloboletus
Species:	C. firmus
Binomial name
Caloboletus firmus (Frost) Vizzini (2014)
Synonyms
Boletus firmus Frost (1874)

See also

• List of North American boletes