Tricholoma portentosum

Tricholoma portentosum, commonly known as the Charcoal Burner, is a species of mushroom belonging to the genus Tricholoma. It is found in coniferous and mixed forests across the Northern Hemisphere, including Europe, North America, and Asia. This mushroom is notable for its distinctive appearance and its edibility, making it a popular choice among foragers.

Description

Tricholoma portentosum features a cap that ranges from 5 to 15 cm in diameter, which is initially convex but flattens with age, often developing a slight central depression. The cap's surface is smooth and silvery-grey to yellowish, with darker, fibrous scales towards the center. The gills are emarginate, crowded, and white to light grey, often with a slight yellowish tinge at maturity. The stem is 4 to 10 cm long and 1 to 2.5 cm thick, cylindrical, and bears the same coloration as the cap but may have a more pronounced yellow hue at the base.

The flesh of the mushroom is white, thick, and firm, with a mild taste and a pleasant smell. Spore print is white, which is characteristic of the Tricholoma genus.

Habitat and Distribution

Tricholoma portentosum is a mycorrhizal fungus, forming symbiotic relationships with living trees, particularly conifers such as spruce and pine, although it can also be found in mixed woodlands. It prefers acidic soils and is typically found in late summer to late autumn. Its distribution includes various parts of the Northern Hemisphere, with occurrences in Europe, North America, and Asia.

Edibility

The Charcoal Burner is considered an edible mushroom, appreciated for its mild flavor and firm texture. It is used in various culinary preparations, including soups, stews, and sautéed dishes. However, as with all wild mushrooms, proper identification is crucial before consumption to avoid confusion with potentially toxic species.

Conservation

Currently, Tricholoma portentosum is not listed as endangered or threatened. However, like many wild mushrooms, its populations are susceptible to habitat loss, pollution, and the impacts of climate change. Sustainable foraging practices are recommended to ensure the continued abundance of this species.

See Also

• Mycorrhiza
• Edible mushroom
• Mycology