Identifying Your Bolete
6.6
BOLETELLUS CHRYSENTEROIDES
Boletellus chryserenteroides
Frequency
Infrequent
Habitat Area
In hardwood deciduous forests, under oaks or hemlocks, sometimes on old stumps.
Cap
Brown and velvety when young, becoming chocolate-brown to chesnut-brown and often rimose in age, flesh white or pale yellow in the cracks.
Margin
Even.
Tubes
Adnate, depressed near the stalk.
Pores and Pore Surface
Pore surface yellow to greenish-yellow in age, staining blue when bruised; pores angular, 1 mm wide.
Stalk
Equal to enlarging downward, reddish, often yellowish at the apex.
Stalk Feature
Reddish brown, often yellowish at the apex, non-reticulate, tiny hairs or scales can form a reticulate pattern.
Flesh
Pale yellow, staining blue (sometimes slowly), especially above the tubes, reddish to yellowish brown in the stipe.
Basal Mycelium
White.
Chemical reactions
Flesh: towards rust with KOH; towards brown with NaOH and NH4OH.
Cap: towards rust with KOH.
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