Common buttercup (Suillus luteus) dried Local name - kozlyak, kozar. A very good edible mushroom. Before cooking, the skin is removed from the scallop, because even after boiling it remains slimy and can cause stomach upset when consumed. Butternut squash is used fresh, dried, salted, marinated in reserve. Common buttercup (Suillus luteus) is a type of mushroom from the buttercup genus of the buttercup family (Suillaceae). The local name is kozlyak, kozar. Description Cap 3-8(10-12) cm in diameter, hemispherical, then convex or flattened, with a blunt edge, chestnut or yellowish-brown, glabrous, sticky. The skin is removed very easily. Pores are whitish at first, turn yellow with age, angular-rounded. Spores are dirty yellowish, 7-10.5 × 3-3.5 µm. Peduncle 3-8(10) × 1-3 cm, dense, whitish, later yellowish, brownish, with a ring that quickly disappears. The ring is plate-membranous, white, later brownish, sometimes with a purple tint. The pulp is watery, whitish, yellowish with age, darker under the skin, does not change when cut in air, the taste and smell are pleasant. Distribution The mushroom is widespread in coniferous forests of Eurasia and North America, introduced to southern Australia and New Zealand. It is found throughout Ukraine in coniferous (pine) and mixed forests. Collected from July to November. In recent years, large populations of this mushroom species have been observed in the "Medobory" nature reserve and in the vicinity of the sled track in the city of Kremenets, Ternopil region. Uses Very good edible mushroom. Before cooking, the skin is removed from the scallop, because even after boiling it remains slimy and can cause stomach upset when consumed. Butternut squash is used fresh, dried, salted, marinated in reserve.