SYNTAXA OF DARK-CONIFEROUS FORESTS FROM SOUTH-BOREAL SUBZONE OF WEST SIBERIAN PLAIN
Classification of dark-coniferous boreal forests (class Vaccinio – Piceetea Br.-Bl. in Br-Bl., Siss. & Vlieger 1939) of southern part of West-Siberian plain was performed. Associations Melico – Abietetum sibiricae ass. nova hoc loco and Carici macrourae – Abietetum sibiricae ass. nova hoc loco were included in the alliance Aconito rubicund – Abietion sibiricae Anenkhonov et Chytry 1998. Association Ledo palustris – Abietetum sibiricae ass. nova hoc loco was included in the alliance Pino sibiricae – Abietion sibiricae all. nova hoc loco. Siberian dark-coniferous boreal forests were united in the provisional order Piceo obovatae – Pinetalia sibiricae ord. nova prov. New provisional subclass Piceenea excelsae – obovatae subclass nova prov. was proposed for all Eurasian dark–coniferous boreal forests including orders Piceetalia excelsae Pawł. in Pawł., Sokołowski & Wallisch 1928, Piceo obovatae – Pinetalia sibiricae ord. nova prov. and Abieti – Piceetalia yezoensis Miyawaki, Ohba et Okuda 1968.