Leccinum scabrum

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Leccinum scabrum, commonly known as the birch bolete, is a species of bolete fungus in the family Boletaceae. It is found in Europe, Asia, and North America, typically growing in association with birch trees.

Description

The cap of Leccinum scabrum is typically 5–15 cm in diameter, convex to flat, and ranges in color from light brown to dark brown. The surface of the cap is dry and can be slightly velvety. The stipe is 8–20 cm long and 1–3 cm thick, with a characteristic scabrous (rough) surface covered with small, dark brown to black scales. The flesh is white and does not change color when cut.

The pores on the underside of the cap are small, round, and white to pale brown, becoming darker with age. The spore print is brown.

Habitat and Distribution

Leccinum scabrum is mycorrhizal, forming symbiotic relationships with birch trees. It is commonly found in woodlands, forests, and heathlands where birch trees are present. The species is widely distributed across Europe, Asia, and North America.

Edibility

Leccinum scabrum is considered an edible mushroom, although it is not as highly prized as some other boletes. It is important to cook the mushroom thoroughly, as raw or undercooked specimens can cause gastrointestinal upset in some individuals.

Similar Species

Leccinum scabrum can be confused with other species in the genus Leccinum, such as Leccinum versipelle (orange birch bolete) and Leccinum aurantiacum (red-capped scaber stalk). These species can be distinguished by their cap color and the specific trees they associate with.

Taxonomy

Leccinum scabrum was first described by Elias Magnus Fries in 1821. The genus Leccinum is characterized by its rough-stemmed boletes, which are typically associated with specific types of trees.

See Also

• List of Leccinum species
• Boletaceae
• Mycorrhiza

External Links

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