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Scientific name: Pulveroboletus lignicola (Kallenb.) Pilàt
Synonyms: Boletus lignicola
Hat: 5-20 cm. Initially involute, hemispherical then enlarged-convex, initially pubescent but soon smooth surface, yellow-ocher, in the points where the carpophores come into contact with red-brownish, then with the dark brown age.
tubules: 1-1.5 cm, more or less decurrent depending on the eccentricity of the stem; first rust yellow, then yellow-greenish; blue-greenish to the touch.
Pori: yellow-reddish finally rusty brown or olive; to the greenish blue touch; rather wide and elongated-polygonal.
Stem: short, more or less massive and fusiform, ocher-yellow in color, with more or less extensive areas reddish-brown.
Meat: yellow-whitish, darker in the stem and golden fawn in color at the base of the same; firm and tenacious consistency, slightly putrescible; turns blue near the tubules.
spore: elliptical, fusiform, yellow-greenish, in bulk olive-green.
Pulveroboletus lignicola (Kallenb.) Pilàt (photo http://www.sklorz-pilze.de)
Edibility, habitat and observations
Relationship with the surrounding plant environment: saprophyte mushroom.
It grows on dead trunks or woody remains of coniferous trees, in summer-autumn.