Original birch woodlands were described from West Siberian northern forest-tundra. They were classified according to ecologo-fl oristic classifi cation.
The article presents data on the taxomonical structure of flora Basin Tom obtained based on 22 model basins. For the first time contains basic parameters showing the taxonomic structure of each model basin. Research data it possible to estimate the complexity of the systematic structure, the level of autonomy the measure of closeness and similarity of the studied fl oras.
The classification of vegetation of shrub steppe communities in the Selenginskoe Midland performed by using florogenetic approach based on the results of cluster analysis of coenofl oras. The received florocoenotypes of shrub steppe reflects the genetic variety of a territory. Are allocated: florocoenotyp Gemixerophyte (nemoral) shrub of the Dauro-Manchurian fratria ( Armeniaca sibirica formation); florocoenotyp Steppe with subtypes Gemixerophyte shrubby steppes of the Altai-Mongolian fratria (a formation of Cotoneaster melanocarpus , Caragana pygmaea ) and Ural-Siberian fratria (a formation of Spiraea media , Pentaphylloides fruticosa ); Xerophyte shrubby steppes of the Altai-Mongolian fratria (a formation of Spiraea aquilegifolia); florocoenotyp Tall grass communities with a subtype Gemixerophyt shrubby of the Central Asian fratria (Caragana spinosa formation). The article includes a brief characteristics of vegetation formations.
A.N. Berkutenko
Institute of Biological Problems, FEB RAS, 685000, Magadan, Portovaya str., 18
Keywords: комплексные памятники природы, гора Эзоп, Магаданская область, complex nature monuments, Ezop Mountain, Magadan region
Botanic-geographic characteristics of Ezop Mountain area in Srednekanskyi district of Magadan region is given. This area is suggested as complex nature monument of regional level. Revision of the status of some existed protected areas in Magadan region is discussed.
Tall Oregon Grapeare promising for introduction in Siberia. Based on literature and Russian and foreign web-based information on woody plants in this species 65 forms of interest for urban plantings and park garden design have been revealed. Their ornamental characteristic were analyzed.
Inter-simple sequence repeats (ISSR) markers of genomic DNA were used to assess the genetic diversity in six popu- lations of Astragalus sericeocanus - rare endemic species to the shore of Lake Baikal. Five primers amplified 91 bands with 86 (94.1 %) being polymorphic. A low level of genetic similarity among population Turka and other populations was detected, based on the Nei’s distance (0.145). The low genetic connectivity was found among population Turka and other populations is an evidence of enough long-term insulation this population on the eastern coast of Lake Baikal. Based on these results the conservation strategy of Astragalus sericeocanus was proposed.
The anatomy of the leaf Gueldenstaedtia monophylla in five natural populations of Central Altai has been studied. It is found that the Gueldenstaedtia monophylla leaf has izopalisade structure that reflects its xerophytic nature. Learned anatomical features have low levels of variability (less than 20 %). A considerable similarity in the structure of the leaves in plants from different populations was defined.
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
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.
