Supplemental data: Cortinarius mapuveronicae from South America, a chemical and morphological link between European and Australian dermocyboid Cortinarii

As part of the characterization of the new fungal species Cortinarius mapuveronicae from Patagonian Nothofagus forests, several anthraquinonoid secondary metabolites were identified through chemical analysis. A notable feature is the intense red coloration of the basidiomata. This color is attributed to a newly identified anthraquinone pigment, clavorubin-8-O-methylether (1). In addition to this novel anthraquinoid compound, several known monomeric and dimeric anthraquinones were detected: (+)-7,7-Emodinphyscion (2), Emodin (3), Emodin-6,8-di-O-methylether (4), Questin (5), (+)-(S)-Skyrin (6), (+)-(S)-Aurantioskyrin (7), Hypericin (8), Dermolutein (9), Endocrocin (10). Given compound numbers refer to the compound numbering in the corresponding publication of Lange & Huymann et al.