Leccinum duriusculum (Schulzer ex Kalchbr.) Singer, Boletaceae, Agaricales. (Local name: ÐодбеÑÑ'зовик жеÑÑковаÑÑй) Cap: 5-12cm convex up to broadly convex, smooth; dark brown or chocolate brown. Odour is fragrant. Flesh is white and not bitter also fresh. Tubes: attached when young, colour whitish up to pale yellowish-brown with a ring depression under a cap around stalk when old, not bitter. Stalk: 8-15cm long with tiny projections as darker dots, light grey or brownish-gray up to dull brown and yellowish-brown with black dots, minor dark grey when old and drying up; 1.5-3.5cm thick, enlarged down, often up to almost bulbous base; old one is fibrous and stiff. Habitat: small groups or single scattered near birches inside pine-tree forest, sometimes on hummocks in wet boggy mixed forest. Edibility: good (several methods of cooking). June - September.