British fungi - Keys

The genus Hydnellum

by Gordon Dickson

 

 

 

1

Cap whitish, pink, buff or fulvous, darkening, consisting of fused pileoli, velvety at first, darkening with age but not wrinkled or markedy zoned

2

 

Cap brown with or without blue tints, wrinkled and zoned

3

2(1)

Cap at first fulvous or buff, velvety, later the tomentum collapsing and the surface darkening; with oak or chestnut

spongiosipes

 

Cap surface at first whitish to pinkish, 'lumpy' and showing fused pileoli, then darkening; in active grow sometimes with ged guttation drops; taste mild or mealy; with pine

ferrugineum

3(1)

Cap margin, spines and flesh all showing blue colours

caeruleum

 

Cap brown (no blue), surface radially wrinkled and concentrically zoned

4

4(3)

Cap flesh thin (< 2 mm), almost papery; with pine

scrobiculatum

 

Not with this combination of characters

5

5(4)

Cap showing some shade of brown, thin-fleshed, often tuberculate in the centre; with oak or chestnut

concrescens

 

Not with this combination of characters

6

6(5)

Cap flesh thick (> 2 mm), surface brown, rough and with growing edge often pink with red droplets; taste intensely hot, often after a delay; with pine

peckii

 

Taste not hot, cap with some orange tints, flesh thick; with pine

7

7(6)

Stem orange (or partly so), flesh brown, tinted orange in stem only

aurantiacum

 

Stem brown, pileus flesh brown, stem flesh dull orange with extensions

auratile

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