Caloboletus radicans

Boletus radicans-20.7.2012-1

Caloboletus radicans is a species of mushroom in the family Boletaceae. It is commonly known as the root-foot bolete due to its distinctive root-like structure at the base of the stem. This mushroom is found in forests, particularly in association with oak trees, across various regions.

Description

Caloboletus radicans is characterized by its medium to large-sized cap, which can reach up to 15 centimeters in diameter. The cap is convex when young, becoming more flattened with age. The color of the cap varies from reddish-brown to chestnut-brown, often with darker scales or spots. The stem is stout and often tapers towards the base, where it forms a distinctive root-like structure. The pore surface is yellow when young, becoming olive-yellow with age.

Habitat and Distribution

This species is commonly found in oak forests, where it forms mycorrhizal associations with the roots of oak trees. Caloboletus radicans is distributed in various regions, including North America and Europe.

Edibility

Caloboletus radicans is considered edible by some, but caution is advised as it can cause gastrointestinal upset in certain individuals. It is recommended to consult with an experienced mycologist before consuming this mushroom.

Similar Species

Several other species within the genus Caloboletus share similar characteristics with C. radicans. These include Caloboletus calopus and Caloboletus rubripes, which also exhibit a root-like base and similar cap morphology.

Conservation

Due to its mycorrhizal relationship with oak trees, the conservation of Caloboletus radicans is closely linked to the preservation of oak forests. Habitat loss and deforestation pose significant threats to the populations of this mushroom species.