 Butyriboletus fechtneri

Butyriboletus fechtneri is a basidiomycete fungus in the family Boletaceae.It was formerly regarded as a species of "Boletus", but in 2014 was transferred to the newly erected genus "Butyriboletus", after molecular data revealed that it is a member of the "Regius" clade (named after "B. regius"), quite distant from the core clade of "B. edulis" and closely allied species.