Sickener (Russula emetica)
Russulas tend to like damp woodland with pine and birch trees to thrive on; emetica is no exception. Preferring acid soils this is a common fungus of the heaths of Dorset, especially those areas that hacve been forested. It can often be found in places that are damp enough for Sphagnum mosses to grow. A widespread and common fungus that appears in troops in the autumn. It is very much like some other species of russula so habitat is quite a key factor in identification.
Edible? No, certainly not. It is very poisonous; called the sickener for good reason.
Find out more about the Sickener in Dorset here: www.natureofdorset.co.uk/species_panel/Sickener?vdt=speci...