Dyeing to resurrect an old species?

Molecular validation of Sarcodon quercinofibulatus, a species of the S. imbricatus complex associated with Fagaceae, and notes on Sarcodon

“…imbricatus and S. squamosus are the two most similar species to S. quercinofibulatus. They appear to be quite identical under the microscope, but have a few morphological differences (Johannesson et al 1999;Kotlaba and Pouzar 2000;Schafer 2000;Schmidt-Stohn 2001;Arnolds 2003;Della Maggiora 2007, and our observations): i) S. imbricatus s.s. is characterized by a brown pileus (paler than S. squamosus) with brown scales, a margin not remaining incurved for a long time, an always depressed, often infundibuliform or hollow centre with scales usually pointing almost straight upward; brown spines not decurrent and quite long; a stipe normally longer than the pileus diameter, cylindrical or with slightly bulbous base, not paler at the apex; a smell somewhat disagreeable, and a bitter taste; ii) S.…”