Abstract
The article presents the results of the authors’ long-term research (2011–2017), including the collection ofherbarium material in all regions of Khakassia, as well as accounting of materials of big Siberian herbaria (HGU, KRAS,NS, TK) and literary information. A taxonomic analysis of the family Rosaceae Juss. was performed for the first time forthe flora of Khakassia on the basis of the original synopsis, which includes 108 species from 26 genera. The taxonomicstructure of Rosaceae in Khakassia flora testifies to its relative autochthonous nature. The average number of species inthe genus is high – 4.2. This indicator is higher than the indicators for the entire flora of Khakassia – 3.24, for the floraof the northwestern part of the Altai-Sayan province – 3.5 (Alchemilla s. l.), for the flora of the Yenisei Sayans – 3.8,where autochthonous trends are noted. More than half of the species in the family (57) contain the genera Alchemilla andPotentilla, whose centers of speciation are located in mountain systems.
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