Abstract
The Malaja Sosva State Reserve is situated in the northwestern part of Western Siberia (61° 50' - 62° 43' N, 63° 45' - 64° 45' E) and occupies area of 92 900 hectares. Moss flora of the reserve includes 111 moss species, comprising mostly boreal elements. Most species are widespread in Western Siberia; rare species are marked in the list by asterisk.