Caloboletus calopus
Species of fungus in the family Boletaceae found in Asia, Northern Europe and North America / From Wikipedia, the free encyclopedia
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Caloboletus calopus, commonly known as the bitter bolete,[2] bitter beech bolete or scarlet-stemmed bolete, is a fungus of the bolete family, found in Asia, Northern Europe and North America. Appearing in coniferous and deciduous woodland in summer and autumn, the stout fruit bodies are attractively coloured, with a beige to olive cap up to 15 cm (6 in) across, yellow pores, and a reddish stipe up to 15 cm (6 in) long and 5 cm (2 in) wide. The pale yellow flesh stains blue when broken or bruised.
Caloboletus calopus | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Boletales |
Family: | Boletaceae |
Genus: | Caloboletus |
Species: | C. calopus |
Binomial name | |
Caloboletus calopus (Pers.) Vizzini (2014) | |
Synonyms[1] | |
Caloboletus calopus | |
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Pores on hymenium | |
Cap is convex | |
Hymenium is adnate | |
Stipe is bare | |
Spore print is olive-brown | |
Ecology is mycorrhizal | |
Edibility is poisonous |
Christiaan Persoon first described Boletus calopus in 1801. Modern molecular phylogenetics showed that it was only distantly related to the type species of Boletus and required placement in a new genus; Caloboletus was erected in 2014, with C. calopus designated as the type species. Although Caloboletus calopus is not typically considered edible due to an intensely bitter taste that does not disappear with cooking, there are reports of it being consumed in eastern Europe. Its red stipe distinguishes it from edible species, such as Boletus edulis.