EVOLUTIONARY MORPHOLOGICAL ANALYSIS OF THE DIAGNOSTIC CHARACTERS OF THE GENUS <i>LEYMUS (POACEAE) </i>IN ASIAN RUSSIA
Modelling of evolutionary morphological relations of Leymus species distributed in Asian Russia is performed using SYNAP method. Species of the type section Leymus are grouped in the basal part of the scheme. L. mollis takes the most isolated position in the section Leymus. Species of the section Ani-sopyrum are grouped in the middle part of an evolutionary scheme. They do not form a separate group and alternate with species of the section Aphanoneuron. Close evolutionary morphological relations between the sections Anisopyrum and Aphanoneuron give an evidence of a relatively young age of the studied group.