Common mushroom (agaricus campestris).  A, young fructification on mycelium, in section; b, c, later stages, also in section; d, mature form.

Common Mushroom

Common mushroom (agaricus campestris). A, young fructification on mycelium, in section; b, c, later…

Fungi. 1, Agarcius comatus; 2 Boletus edulis; 3, Morchella esculenta

Fungi

Fungi. 1, Agarcius comatus; 2 Boletus edulis; 3, Morchella esculenta