Boletus edulis

Rare card · No. 39356

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 and autumn. The fruit body has a large brown cap which can reach 30 cm (12 in) in diameter and 3 kg (6 lb 10 oz) in weight. Like other boletes, it has tubes extending downward from the underside of the cap, rather than gills; spores escape at maturity through the tube openings (pores). The pore surface of the fruit body is whitish when young, aging to a greenish-yellow. The stout stipe (or stem) is white or yellowish, up to 25 cm (10 in) tall and 7 cm (3 in) thick, and partially covered with a raised network pattern (reticulations). The fungus grows in deciduous and coniferous forests and tree plantations, forming symbiotic ectomycorrhizal associations with living trees by enveloping the tree's underground roots with sheaths of fungal tissue. Widely distributed in...

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