Boletus venturii Bon |
The cap is lemon-yellow, fleshy, thick, sturdy, hemispherical then convex and more or less flattened. The cap surface is smooth (sometimes rough, but not velvety), soon dry, greasy to the touch or slightly viscid when damp. The cap margin is paler, often with a white line at the edge. The stem is thick, full, initially egg-shaped then swollen, then more or less equal or stout. It is white to pale brown. It is covered with a white, thin network, mostly visible at the stem's apex, the mesh becoming coarser downwards. The flesh is thick, firm, white, unchanging when exposed to air; its taste is pleasant; the odour is pleasant; The tubes are thin, easily removed from cap, whitish then yellow-greenish to green-brown, almost free, unchanging when exposed to air. The pores are small, round, regular, white, then dull yellow, greenish yellow to green brown (concolorous to tubes), not changing colour when pressed. The spore print is olive brown. It grows in deciduous woods, on a rather acid, but also calcareous soil. The fruiting period takes place from July to October.
Chemical tests : no reaction to ammonia. Distinctive features : all the characters of a Penny bun (Boletus edulis), but with a lemon yellow cap; southern species Boletus venturii is rare and localised in the forest of Rambouillet, and is rare, more generally speaking . | ||
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page updated on 14/01/18