MykoBank no.: MB843429
Etymology:—dedicated to Jukka Vauras from Finland for his valuable contributions to the study of the genus Inocybe.
Diagnosis:— Inocybe vaurasii has similar morphological characters and habitat to I. xanthomelas, such as its slender habit, pale colouration, asteriform spores and preference for Fagaceae forests on limestone soils; the two clearly differ in their ITS data sequences, as well as in the combination in I. vaurasii of the more ochre-orange colours of the pileus, larger pleurocystidia (av. 68 × 17.5 µm vs. 54.5 × 15.8 µm), and spores with more prominent knobs (2.2–3.3 vs. 1.2– 2.4 µm in height); in BLAST the closest ITS sequences are that of I. phaeocystidiosa (87.5 %), as well as I. blandula (86.8 %) and I. alpinomarginata (86.0 %).
Holotype:— FRANCE. Nouvelle-Aquitaine: Pyrénées-Atlantiques, Osse-en-Aspe. Forêt d’Issaux, under Corylus avellana in a Fagus sylvatica forest, 43.00222, -0.70667, 917 m asl., 9 October 2016. F. Pancorbo, AH 47714!, GenBank: ITS ON263162, LSU ON276736, isotypes in FP16100904!, GB!