Caloboletus kluzakii

About

Caloboletus kluzakii is a bolete mushroom native to Europe, primarily found in southern Bohemia in the Czech Republic. First described in 2006, this distinctive fungus was originally classified as Boletus kluzakii before being transferred to the genus Caloboletus in 2014 based on genetic studies. Named in honour of the Czech mycologist Zdeněk Kluzák, who had attempted to describe it earlier, this uncommon mushroom is characterised by its unique colour progression from whitish to rose-pink or purplish-pink as it matures, with a cap surface that quickly turns red when touched. It grows exclusively in grassy areas under oak trees, sometimes near Scots pine, and features yellow pores on its underside that turn blue when bruised, a yellow stipe with a mesh-like pattern, and flesh that tastes distinctly bitter. Despite its protected habitat in the Luční national natural monument area, the species appears to fruit irregularly, with researchers documenting only ten specimens over an eight-year period.

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