One of the most acrid species growing in Picea forests, R. firmula is quite variable in the cap colour; the spore deposit is one of the darkest among the European species.
Photo © Marco Floriani.
Stouter specimens of Russula firmula; as for many other acrid species, the smell resembles those of Pelargonium leaves.
[Collection PC Buyck 04.313]
Photo © Bart Buyck.
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