About Xanthoconium affine (Peck) Singer
Xanthoconium affine is a bolete fungus species belonging to the genus Xanthoconium. It was first described as a species of Boletus by Charles Horton Peck in 1873, and Rolf Singer transferred it to its current genus Xanthoconium in 1944. Its convex cap ranges from 3.5 to 9 centimetres (1+1⁄2–3+1⁄2 inches) wide and has a brownish colour. The pores on the underside of the cap are whitish when young and darken as the fungus ages. The stem grows 3.5–9 cm tall and 1–2 cm thick. The flesh of the fungus is white and has a mild scent. The spore print produced by this species is yellowish brown. Xanthoconium affine can resemble several other fungi: X. purpureum, Boletus separans, and Tylopilus felleus. It grows under oak and beech trees in eastern North America, and can be found between June and September. This species is classified as edible.
