Does anyone know if the carmine reaction to sulphovanillin on the stem of Russula aurora is species specific? Phillips says this feature 'distinguishes this species', which I take to mean that this doesn't happen in any other Russula sp. Fungi of Switzerland remarks on the feature but does not say if species specific and I cannot find any useful information on R. aurora on the internet. (I wonder why there is so little info. out there on aurora?)
Thanks
Richard