Caloboletus

Caloboletus
	Caloboletus calopus
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Boletales
Family:	Boletaceae
Genus:	Caloboletus ; Vizzini (2014)
Type species
	Caloboletus calopus; (Pers.) Vizzini (2014)

Last updated November 03, 2025

Caloboletus is a fungal genus in the family Boletaceae. It was circumscribed by Italian mycologist Alfredo Vizzini with Caloboletus calopus as the type species.^[1] The erection of Caloboletus follows recent molecular studies that outlined a new phylogenetic framework for the Boletaceae.^[2]^[3] Boletus peckii was also transferred to this genus by Vizzini, but was subsequently moved to the genus Butyriboletus based on molecular evidence.^[4] The generic name Caloboletus, derived from the Greek calos "nice", refers to the attractive red coloring of the stipe.^[1]

Species

In 2023, a new species was identified in China.^[5]As of October 2025^[update], Index Fungorum and Catalogue of Life list the following species:

Name	Taxon Author	Year	Distribution
Caloboletus calopus	(Pers.) Vizzini	2014	Pacific Northwest and Michigan, Europe
Caloboletus conifericola	Vizzini	2014	Washington, Oregon, Alaska, British Columbia
Caloboletus firmus	(Frost) Vizzini	2014	New England
Caloboletus frustosus	(Snell & E.A. Dick) D. Arora & J.L. Frank	2014	British Columbia, California, Oregon, Washington
Caloboletus griseoflavus	L. Fan, N. Mao & T.Y. Zhao	2023	China (Shanxi)
Caloboletus guanyui	N.K. Zeng, H. Chai & S. Jiang	2019	China (Hainan, Fujian)^[6]
Caloboletus inedulis	(Murrill) Vizzini	2014	North America
Caloboletus kluzakii	(Šutara & Špinar) Vizzini	2014	Czech Republic
Caloboletus marshii	D. Arora, C.F. Schwarz & J.L. Frank	2014	United States^[7]
Caloboletus panniformis	(Taneyama & Har. Takah.) Vizzini	2014	Japan, China
Caloboletus polygonius	(A.E. Hills & Vassiliades) Vizzini	2014	Greece
Caloboletus radicans	(Pers.) Vizzini	2014	Europe
Caloboletus roseipes	(Bessette, Both & A.R. Bessette) Vizzini	2014	North America
Caloboletus roseo-olivaceus	(J. Blum) N. Schwab	2019	Europe
Caloboletus 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)

References

1 2 Vizzini A. (10 June 2014). "Nomenclatural novelties" (PDF). Index Fungorum (146): 1–2. ISSN 2049-2375.
↑ Nuhn ME, Binder M, Taylor AF, Halling RE, Hibbett DS (2013). "Phylogenetic overview of the Boletineae". Fungal Biology. 117 (7–8): 479–511. doi:10.1016/j.funbio.2013.04.008. PMID 23931115.
↑ Wu G, Feng B, Xu J, Zhu XT, Li YC, Zeng NK, Hosen MI, Yang ZL (2014). "Molecular phylogenetic analyses redefine seven major clades and reveal 22 new generic clades in the fungal family Boletaceae". Fungal Diversity. 69 (1): 93–115. doi:10.1007/s13225-014-0283-8.
↑ Zhai K, Wu G, Halling R, Yang ZL (2015). "Three new combinations of Butyriboletus (Boletaceae)". Phytotaxa. 234 (1): 51–62. doi:10.11646/phytotaxa.234.1.3.
↑ Mao, N; Zhao, TY; Zhang, YX; Li, T; Lv, JC; Fan, L (2023). "Boletaceae from Shanxi Province of northern China with descriptions of ten new species". Mycosphere. 14 (1): 2013–2091. doi:10.5943/mycosphere/14/1/24. ISSN 2077-7019.
↑ Chai, Hui; Liang, Zhi-Qun; Xue, Rou; Jiang, Shuai; Luo, Shi-Hong; Wang, Yong; Wu, Lu-Ling; Tang, Li-Ping; Chen, Yun; Hong, Deng; Zeng, Nian-Kai (2019-02-18). "New and noteworthy boletes from subtropical and tropical China". MycoKeys (46). Pensoft Publishers: 55–96. doi: 10.3897/mycokeys.46.31470 . ISSN 1314-4049. PMC 6401544 . PMID 30846903.
↑ Frank JL (24 October 2014). "Nomenclatural novelties" (PDF). Index Fungorum: 1. ISSN 2049-2375.

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[Vizzini_2014-1] 1 2 Vizzini A. (10 June 2014). "Nomenclatural novelties" (PDF). Index Fungorum (146): 1–2. ISSN 2049-2375.

[Nuhn_2013-2] Nuhn ME, Binder M, Taylor AF, Halling RE, Hibbett DS (2013). "Phylogenetic overview of the Boletineae". Fungal Biology. 117 (7–8): 479–511. doi:10.1016/j.funbio.2013.04.008. PMID 23931115.

[Wu_2014-3] Wu G, Feng B, Xu J, Zhu XT, Li YC, Zeng NK, Hosen MI, Yang ZL (2014). "Molecular phylogenetic analyses redefine seven major clades and reveal 22 new generic clades in the fungal family Boletaceae". Fungal Diversity. 69 (1): 93–115. doi:10.1007/s13225-014-0283-8.

[Zhao_2015-4] Zhai K, Wu G, Halling R, Yang ZL (2015). "Three new combinations of Butyriboletus (Boletaceae)". Phytotaxa. 234 (1): 51–62. doi:10.11646/phytotaxa.234.1.3.

[5] Mao, N; Zhao, TY; Zhang, YX; Li, T; Lv, JC; Fan, L (2023). "Boletaceae from Shanxi Province of northern China with descriptions of ten new species". Mycosphere. 14 (1): 2013–2091. doi:10.5943/mycosphere/14/1/24. ISSN 2077-7019.

[Chai_Liang_Xue_Jiang_2019_pp._55–96-6] Chai, Hui; Liang, Zhi-Qun; Xue, Rou; Jiang, Shuai; Luo, Shi-Hong; Wang, Yong; Wu, Lu-Ling; Tang, Li-Ping; Chen, Yun; Hong, Deng; Zeng, Nian-Kai (2019-02-18). "New and noteworthy boletes from subtropical and tropical China". MycoKeys (46). Pensoft Publishers: 55–96. doi: 10.3897/mycokeys.46.31470 . ISSN 1314-4049. PMC 6401544 . PMID 30846903.

[Frank_2014-7] Frank JL (24 October 2014). "Nomenclatural novelties" (PDF). Index Fungorum: 1. ISSN 2049-2375.

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