Pores and Pore Surface
Whitish, browning in age or sometimes when bruised; pores circular, 1,5-3 per mm.
White staining reddish, sometimes slowly, when cut, especially at the juncture of the cap and stipe, darkening to purple-gray to black after one hour or more.
Flesh: no reaction with KOH and NaOH; towards bluish gray with FeSO4 and NH4OH; a strong reaction towards brown with phenol and towards red with formalin. Cap and stipe: towards beige on the cap for KOH, NaOh and NH4OH; nothing for FeSO4; phenol goes from beige to black, while formalin goes from beige to pinkish and then to gray. Tubes: beige for KOH, NaOH and NH4OH; gray for FeSO4, phenol and formalin.
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