A taxonomic revision of Mycocalicioid fungi known in Holarctic floristic kingdom, comprising 102 species in 7 genera is presented, 9 species are described as new to science." Key to all known species worldwide is included as well as 113 color plates. New: Chaenothecopsis caucasica sp. nov. (Azerbaijan), C. formosa sp. nov. (Szechuan, China), C. heterospora sp. nov. (Szechuan, China), C. hyrcana sp. nov. (Azerbaijan), C. mediarossica Titov & Gudovicheva sp. nov. (Yaroslavskaya Oblast, European part of Russia), C. sinensis sp. nov. (Szechuan, China), C. transbaikalica sp. nov. (Szechuan, China and Buryatia, Russia), Phaeocalicium gracile sp. nov. (Szechuan, China), P. ornicolum (Steiner ex Zahlbr.) comb. nov. (Austria), Stenocybe montana sp. nov. (Szechuan, China). New to North America: Chaenothecopsis nigra Tibell (British Columbia