Caloboletus is a fungal genus in the family Boletaceae. It was circumscribed by Italian mycologist Alfredo Vizzini with Caloboletus calopus as the type species. The erection of Caloboletus follows recent molecular studies that outlined a new phylogenetic framework for the Boletaceae. Boletus peckii was also transferred to this genus by Vizzini, but was subsequently moved to the genus Butyriboletus based on molecular evidence. The generic name Caloboletus, derived from the Greek calos "nice", refers to the attractive red coloring of the stipe.
Species In 2023, a new species was identified in China. , Index Fungorum and Catalogue of Life list the following species: Image Name Taxon Author Year DistributionCaloboletus calopus (Pers.) Vizzini 2014 Pacific Northwest and Michigan, EuropeCaloboletus conifericola Vizzini 2014 Washington, Oregon, Alaska, British ColumbiaCaloboletus firmus (Frost) Vizzini 2014 New EnglandCaloboletus frustosus (Snell & E.A. Dick) D. Arora & J.L. Frank 2014 British Columbia, California, Oregon, WashingtonCaloboletus griseoflavusL. Fan, N. Mao & T.Y. Zhao2023China (Shanxi)Caloboletus guanyui N.K. Zeng, H. Chai & S. Jiang 2019 China (Hainan, Fujian)Caloboletus inedulis (Murrill) Vizzini 2014 North AmericaCaloboletus kluzakii (Šutara & Špinar) Vizzini 2014 Czech RepublicCaloboletus marshii D. Arora, C.F. Schwarz & J.L. Frank 2014 United States Caloboletus panniformis (Taneyama & Har. Takah.) Vizzini 2014 Japan, China Caloboletus polygonius (A.E. Hills & Vassiliades) Vizzini 2014 GreeceCaloboletus radicans (Pers.) Vizzini 2014 EuropeCaloboletus roseipes (Bessette, Both & A.R. Bessette) Vizzini 2014 North America Caloboletus roseo-olivaceus (J. Blum) N. Schwab 2019 EuropeCaloboletus rubripes (Thiers) Vizzini 2014 California Caloboletus taienus (W.F. Chiu) Ming Zhang & T.H. Li 2017 China (Guangdong)Caloboletus xiangtoushanensis Ming Zhang, T.H. Li & X.J. Zhong 2017 China (Guangdong, Fujian) Caloboletus yunnanensis Kuan Zhao & Zhu L. Yang 2014 China (Yunnan)
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