THREE NEW FOR RUSSIA SPECIES OF COLLEMA (COLLEMATACEAE) FROM SOUTH OF FAR EAST
The descriptions and localities of three new for Russia lichen species,<i> Collema callibotrys</i> Tuck. var.<i> callibotrys, C. conglomeratum</i> var.<i> crassiusculum</i> (Malme) Degel., and<i> C. shiroumanum</i> Räsänen var.<i> shiroumanum</i> are provided.