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Tylopilus felleus

Copyright First Nature 2005
A pink flush to the pore openings betrays the identity of this inedible Cep look-alike, which is very bitter indeed (and cooking only seems to enhance the bitter taste).

Identification guide

Cap

When young, as in the specimen shown here, the somewhat velvetty cap is domed and mid brown, sometimes with an olive tinge. At maturity, the caps turn a darker brown and may flatten, frequently developing wavy edges.

6 to 12 cm in diameter and occasionally as large as 18 cm, the caps of Tylopilus felleus lose their velvet bloom as they age.

Tubes and Pores

The pale cream tubes are round, densely packed and fairly small, terminating in palid pores that turn coral pink as the fruiting body matures.

When handled and bruised, the delicate pores gradually turn brown.

Stipe

A net-like reticulate pattern on the stem sometimes leads to this inedible bolete being mistaken for the choice edible Cep or Penny Bun Bolete (Boletus edulis). 

The stem of Tylopilus felleus is 10 to 18 mm in diameter, thickening towards the base, and  4 to 8 cm tall. (It is frequently curved.) The stem flesh is white and does not change colour when it is cut.

Spore print

Clay-pink.

Odour/taste

Odour not distinctive; taste extremely bitter indeed.

Habitat

Usually solitary but occasionally in small groups beneath oak, beech or coniferous trees.

Season

August to November.

Occurrence

An occasional species. 

Similar species

  1. Boletus edulis has a similar reticulate stipe but its pores do not flush coral pink.
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