Inosperma vinaceobrunneum (Matheny, Ovrebo & Kudzma) Haelew., Index Fungorum 436: 1 (2020).

≡ Inocybe vinaceobrunnea Matheny, Matheny and Kudzma, J. Torrey Bot. Soc. 146(3): 227 (2019). [Basionym]

Note.

This combination was made, based on a four-locus phylogeny (ITS, nrLSU, rpb1, rpb2). Inosperma vinaceobrunneum was retrieved in a clade with two other species ( I. rodiolum (Bres.) Matheny & Esteve-Rav. and an undescribed species), sister to I. adaequatum (Matheny and Kudzma 2019).