Sequence data and morphological characteristics of specimens determined as Inocybe

leiocephala were compared with six type specimens. We con􀂿 rm I. leiocephala, I. lindrothii,

I. subbrunnea, I. fuscescentipes, I. subpaleacea and I. catalaunica as separate

independent species. All species except I. subpaleacea and I. catalaunica were shown

to have a broad intercontinental distribution range. Inocybe leiocephala has its main distribution

in arctic-alpine and subalpine habitats, and I. lindrothii in hemiboreal – boreal

zones. Inocybe subbrunnea is con􀂿 ned to nutrient rich, often more calcareous soils and

mixed coniferous forests. Both I. fuscescentipes and I. subpaleacea, described from the

alpine zone, also grow in boreal forests. Inocybe catalaunica is a species well separated

from I. leiocephala, I. lindrothii and I. subbrunnea in molecular data and it appears to

be more related to I. tjallingiorum and I. phaeoleuca despite macro-morphological similarities

to the I. leiocephala group. The new species I. ohenojae is described here based

on material from the alpine zone in Canada. The new combination Inocybe lindrothii is

proposed and an epitype is designated. Inocybe saponacea is regarded as a synonym of

I. lindrothii. A key to the species is provided.