Cortinarius subcaesiobrunneus sp. nov. , (Cortinariaceae, Agaricales) a new species from northwest China

A new species, Cortinarius subcaesiobrunneus was collected from Gansu Qilianshan National Nature Reserve, Gansu province, northwest China. It differs from other species in section Brunnei, subgenus Telamonia by the strong bluish tints at the stipe base, large basidiospores and at least 12 substitutions and indel positions in the internal transcribed spacer (ITS) region.