Extract from Wikipedia article: Suillellus luridus (formerly Boletus luridus), commonly known as the lurid bolete, is a fungus of the bolete family, found in deciduous woodlands on chalky soils in Asia, Europe, and eastern North America. Fruit bodies appear in summer and autumn and may be abundant. It is a solid bolete with an olive-brown cap up to 20 cm (8 in) in diameter, with small red pores on the underside. The stout ochre stem reaches 8–14 cm (3–6 in) high and 1–3 cm (0.4–1.2 in) wide, and is patterned with a red mesh-work. Like several other red-pored boletes, it stains blue when bruised or cut. Though edible when cooked, it can cause gastric upset when eaten raw and can be confused with the poisonous Boletus satanas, though the latter species has a pale cap; as a result, some guidebooks recommend avoiding consumption altogether. When consumed with alcohol, Suillellus luridus has been implicated in causing adverse reactions similar to those caused by the compound coprine, though laboratory testing has not revealed any evidence of coprine in the mushroom.
Lurid bolete mushroom (Suillellus luridus, Boletus luridus) near Grand Cascde of Slavianka River in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 5, 2017 al. Zelenoy Zhenshchiny, Pavlovsk, Sankt-Peterburg, Russia, 196625
Lurid bolete mushrooms (Suillellus luridus, Boletus luridus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 5, 2017 al. Zelenoy Zhenshchiny, Pavlovsk, Sankt-Peterburg, Russia, 196625
Dissected lurid bolete mushroom (Suillellus luridus, Boletus luridus) in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, August 5, 2017 al. Zelenoy Zhenshchiny, Pavlovsk, Sankt-Peterburg, Russia, 196625
Lurid bolete mushrooms (Suillellus luridus, Russian name Poddubovik) on Dvortsovaya Street in Aleksandrovsky (Alexander) Park. Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, July 18, 2024 Russia, Saint Petersburg, Пушкин, 196601, Дворцовая Улица 1а
Small lurid bolete mushroom (Suillellus luridus) on a lawn in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024 Старый Мост, Saint Petersburg, 196621, Russia
Cross section of lurid bolete mushroom (Suillellus luridus) on a lawn in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024 Старый Мост, Saint Petersburg, 196621, Russia
Young lurid bolete mushrooms (Suillellus luridus) on a lawn in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024 Тройная Липовая Аллея, Saint Petersburg, 196621, Russia
Side view of young lurid bolete mushrooms (Suillellus luridus) on a lawn in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024
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