MORPHOLOGICAL AND GEOGRAPHICAL DIFFERENTIATION OF ELYMUS GMELINII(TRITICEAE, POACEAE) IN THE NORTHERN АSIA
E.V. Kobozeva, A.V. Agafonov, S.V. Ovchinnikova
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
ekobozeva87@mail.ru
Keywords: Elymus, E. gmelinii, E. ciliaris, E. amurensis, E. pendulinus, E. brachypodioides, E. vernicosus, StY- геномные виды, диагностические признаки, таксономия, Elymus, E. gmelinii, E. ciliaris, E. amurensis, E. pendulinus, E. brachypodioides, E. vernicosus, StY-genome species, diagnostic characters, taxonomy
Abstract
Variation of morphological characters in Elymus gmelinii in comparison with variability in E. ciliaris s. l. and E. pendulinus s. l. was studied. As well as other species of the StY-genome group E. gmelinii includes set of differing morphotypes, but unlike E. ciliaris and E. pendulinus remains homogeneous taxonomically, without recognition intraspecific taxa and separate species. The analyses of a series morphological characters has shown, that distinctions between populations of E. gmelinii from different place of the area cannot be used as basis for recognition of independent species. More adequate approach for systematisation of the genus Elymus provides a complex of methods for delimitation between independent species.
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