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