FLUFFY ALDER (ALNUS HIRSUTA (SPACH) TURCZ, EX RUPR.) IN SIBERIA AND ON FAR EAST (CHANGEABILITY, TAXONOMY, HYBRIDIZATION)

The investigation on the morphological changeability of the fluffy alder in Siberia and on Far East of Russia as a base for solving controversial problems of the systematics and natural hybridization was performed. Firstly in 26 populations covering the species area, its phenotypical polymorphism has been studied, the regularities on the changeability of the morphological signs on the endogenic, internal- and interpopulation levels has been studied, and on this base their diagnostic evaluation has been given. The sufficient influence of the climatic situation on the formation of the complex morphological species structure has been shown. The presence of the spontaneous hybridization between fluffy alder and Japanese alder in the South Primorye has been revealed. A non-substantited character to distinguish the Siberian alder and dye alder as independent species has been shown. The investigation results can be used in the field of the population biology and have the practical importance for purposes of the introduction, forest selection and forestry productionAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio