''Xerocomus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of poroid

fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

related to '' Boletus''. Most members of ''Xerocomus'' are edible, though of mediocre gastronomical value and inferior to the sought-after

porcini ''Boletus edulis'' (English: cep, penny bun, porcino) is a basidiomycete fungus, and the type species of the genus '' Boletus''. It is prized as an edible mushroom. The fungus produces spore-bearing fruit bodies above ground in summer a ...

Taxonomy

Many mycologists did not originally recognize the distinction between the two genera and placed ''Xerocomus'' taxa in genus ''Boletus''. However, several molecular

phylogenetic In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical dat ...

studies have demonstrated that ''Xerocomus'' is a heterogeneous genus of

polyphyletic A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies ...

origin, which has resulted in further division of ''Xerocomus'' into ''

Xerocomellus ''Xerocomellus'' is a genus of fungi in the family Boletaceae. The genus, as it was described in 2008, contained 12 species. However ''Hortiboletus rubellus, X. rubellus'' and ''Hortiboletus engelii, X. engelii'' were transferred to the new gen ...

'' and '' Hemileccinum''. The members of the genus ''Xerocomellus'' are more closely related to ''Boletus'' than true ''Xerocomus'' is, which is relatively distantly related to ''Boletus'' and more closely related to ''

Phylloporus ''Phylloporus'' is a genus of fungi in the family Boletaceae (suborder (biology), suborder Boletineae). The genus has a cosmopolitan distribution, and contains about 50 species, mostly in tropical areas. Species References External links

...

''. Other former ''Xerocomus'' species have since been moved to '' Aureoboletus'', '' Imleria'', '' Hortiboletus'' and '' Rheubarbariboletus''. Ladurner and Simonini published a

monograph A monograph is generally a long-form work on one (usually scholarly) subject, or one aspect of a subject, typically created by a single author or artist (or, sometimes, by two or more authors). Traditionally it is in written form and published a ...

on ''Xerocomus'' in 2003, but this predated the taxonomical revisions based on phylogenetic inferences. In 2008, Hills included 18 species found in Britain, not including some species sometimes treated as ''Xerocomus'', and including '' Boletus pulverulentus'' and '' Boletus impolitus''., currently placed in genera '' Cyanoboletus'' and '' Hemileccinum'', respectively. More recent phylogenies have confirmed ''Xerocomus'' as monophyletic in its new restricted arrangement.

Description

Species

*'' X. albobrunneus'' Heinem. & Gooss.-Font. 1951 *'' X. albotessellatus'' Heinem. 1964 *'' X. alliaceus'' (Beeli) Heinem. 1951 *'' X. amazonicus'' Singer 1978 *'' X. anthracinus'' M.Zang, M.R.Hu & W.P.Liu 1991 *'' X. astereicola'' Imazeki 1952 *'' X. astraeicolopsis'' J.Z.Ying & M.Q.Wang 1981 *'' X. belizensis'' — Belize *'' X. chrysonemus'' *'' X. cyaneibrunnescens'' — Guyana *'' X. ferrugineus'' *'' X. garhwalensis'' Nautiyal et al. 2025 — NW IndiaNautiyal A., Ben Hassine Ben Ali M., Kannan R, Rawat G.S., Krishnamurthy R. and Stephenson S.L. 2025
Two New Species of ''Xerocomus'' (Boletales) from the Indian Himalaya.
''Asian Journal of Mycology.'' 8(1), 3–11. *'' X. griseo-olivaceus'' — New Zealand *'' X. guidonis'' *'' X. illudens'' — North America, India and Bangladesh *'' X. lentistipitatus'' — New Zealand *'' X. mcrobbii'' — New Zealand *'' X. nothofagi'' — New Zealand *'' X. olivaceus'' — Belize *'' X. parvogracilis'' — Guyana *'' X. porophyllus'' — China *'' X. potaroensis'' — Guyana *'' X. rishikeshinus'' Nautiyal et al. 2025 — NW India *'' X. rufostipitatus'' — New Zealand *'' X. silwoodensis'' (discovered on a university campus in London, named 7th top new species of 2007 by IISE) *'' X. squamulosus'' — New Zealand *'' X. subtomentosus'' (edible and very common, found in Eurasia, North America and Australia) *'' X. tenax''

References

External links

The genus ''Xerocomus''

* * {{Taxonbar, from=Q578471 Boletaceae Boletales genera Taxa described in 1887