Xerocomus is a genus of poroid fungi related to Boletus. Most members of Xerocomus are edible mushroom, though of mediocre gastronomical value and inferior to the sought-after Boletus edulis.
Taxonomy
Many mycologists did not originally recognize the distinction between the two genera and placed
Xerocomus taxa in genus
Boletus. However, several molecular
phylogenetic studies have demonstrated that
Xerocomus is a heterogeneous genus of
polyphyletic origin,
which has resulted in further division of
Xerocomus into
Xerocomellus 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. Other former
Xerocomus species have since been moved to
Aureoboletus,
Imleria,
Hortiboletus and
Rheubarbariboletus.
Ladurner and Simonini published a monograph on Xerocomus in 2003,
Description
+Morphological features of xerocomoid boletes |
| Bacillate |
| Phylloporoid type with nongelatinous lateral strata |
| Initially a trichoderm, never encrusted |
| Lateral stipe stratum never gelatinous and 80-200 μM thick |
Species
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X. albobrunneus Heinem. & Gooss.-Font. 1951
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X. albotessellatus Heinem. 1964
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X. alliaceus (Beeli) Heinem. 1951
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X. amazonicus Singer 1978
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X. anthracinus M.Zang, M.R.Hu & W.P.Liu 1991
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X. astereicola Imazeki 1952
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X. astraeicolopsis J.Z.Ying & M.Q.Wang 1981
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X. belizensis — Belize
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X. chrysonemus
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X. cyaneibrunnescens — Guyana
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X. ferrugineus
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X. garhwalensis Nautiyal et al. 2025 — NW India
[Nautiyal A., Ben Hassine Ben Ali M., Kannan R, Rawat G.S., Krishnamurthy R. and Stephenson S.L. 2025.
]
target="_blank" rel="nofollow"> Two New Species of Xerocomus (Boletales) from the Indian Himalaya. Asian Journal of Mycology. 8(1), 3–11.
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X. griseo-olivaceus — New Zealand
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X. guidonis
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X. illudens — North America, India and Bangladesh
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X. lentistipitatus — New Zealand
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X. mcrobbii — New Zealand
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X. nothofagi — New Zealand
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X. olivaceus — Belize
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X. parvogracilis — Guyana
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X. porophyllus — China
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X. potaroensis — Guyana
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X. rishikeshinus Nautiyal et al. 2025 — NW India
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X. rufostipitatus — New Zealand
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X. silwoodensis (discovered on a university campus in London,
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X. squamulosus — New Zealand
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X. subtomentosus (edible and very common, found in Eurasia, North America and Australia)
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Xerocomus tenax
External links
