Home – Home – Jornals – Flora and Vegetation of Asian Russia 2015 number 2

9 species of chrysophytes and diatoms were found in lowland water bodies of Upper Ob drainage basin and endorheic area of Ob-Irtysh interfl uve. They are rare species in West Siberia. 5 species and 2 genera are new records for this region.

The data on the biodiversity of algae from saltish lake Bele (Khakasia Republic). Algal communities composition were considered, short ecology-geographical analysis of the flora was made.

The data on the first occurrence of rare species of fern Matteuccia orientalis , included in the Red Books of Primorskii Krai and Sakhalinkaya Oblast’ on the mainland of Southern Primorye, located in the Russian Far East in the north-eastern border area.

Chromosome numbers for four Spiraea species were determined ( S. betulifolia Pall., S. ussuriensis Pojark., S. media Schmidt, S. fl exuosa Fisch. ex Cambess.), two of them for the first time ( S. betulifolia , S. ussuriensis ). Th e number of nucleoli in interphase nuclei of these species was counted.

Сomposition and content of phenolic compounds in the leaves and flowers of three varieties of Pentaphylloides fruticosa were studied. Each of the variety was found to have its own phenolic profile. Main glycosides of fl avonol types identified were as follows. Quercetin glycosides were characteristic for the varieties of P. fruticosa “Kobold” and “Tangerine”. Th e variety of P. fruticosa “White moon” with white fl owers was characterized by kaempferol glycosides in flowers and rhamnetin glycosides in leaves. Specificity of the varieties was found regarding to the contents of quercitrin, astragalin, quercetin and rhamnetin.

The ontogenesis and structure of an adult individual Kyzylkum endemic Lagochilus gypsaceus Vved. were studied. It was established that the species belonged to caudex dwarf shrubs, whose perennial axes formed a short multiaxial caudex. Renewal buds were at a height of 1-2 cm above the substrate. Studied coenopopulations of L. gypsaceus were at the successive stage. In ephemeroid-sagebrush petrophytic community coenopopulation was young, in forb-vermouth steppe it one was mature, but approaching to senescent stage.

The content of phenolic substances (catechins, flavonols, tannins), saponins, pectin substances, ascorbic acid and carotenoids was determined in leaves and flowers of 8 species of genus Campanula L. introduced in the forest-steppe zone of West Siberia. A high content of major groups of biologically active substances except of catechins was established. Th e signifi cant interspecific and individual variability of metabolites was revealed.

Polymorphism and specificity in StY-genome species Elymus gmelinii (Ledeb.) Tzvelev and E. pendulinus (Nevski) Tzvelev widespread in the Asian part of Russia have been studied on the basis of the combined approach. Possibility of introgression between these species was considered with use morphological and ecological-geographical criteria, and also biochemical (SDS-electrophoresis of endosperm proteins) and molecular (ISSR-PCR) markers. The conclusion has been drawn that species E. pendulinus and E. gmelinii are rather isolated, and introgression signs at joint growth of species was not revealed.

Revision of the herbarium collections and chromosome numbers data for the genus Puccinellia of Russia and allied states (former URSS) was conducted. Voucher specimens from LE, VLA and NSK were revised and the corrections in some early publications were made. Information concerning the chromosome numbers and distribution of the 50 Puccinellia species is presented. Th e fi rst chromosome data are given for P. dolicholepis (V.I. Krecz.) Pavlov (2 n = 28), P. kalininiae Bubnova (2 n = 14), P. kulundensis Serg. (2 n = 28), P. jacutica Bubnova (2 n = 28), P. mon golica (T. Norlindh) Bubnova (2 n = 28), P. schischkinii Tzvelev (2 n = 14), P. interior T.J. Sørensen (2 n = 28). Two North American species are studied for the first time in Russia: P. paupercula (Holm.) Fern. et Weath. (2 n = 42) and P. andersonii Swallen (2 n = 42), from the Primorskii Krai and Kamchatka Peninsula. Chromosome numbers in P. geniculata (V.I. Krecz.) Hultén (2 n = 14), P. gigantea (Grossh.) Grossh. (2 n = 14), P. tenuifl ora (Griseb.) Scribn. et Merr. (2 n = 14), P. distans (Jacq.) Parl. (2 n = 42), P. glauca (Regel) V.I. Krecz. (2 n = 42), P. hauptiana (V.I. Krecz.) Kitag. (2 n = 28) are confirmed by the new material. The taxonomical comments are presented.

Adventive species - Papaver dubium L., Linum austriacum L. new to Siberia and Lotus ucrainicus Klok., Nepeta cataria L., Picris rigida Ledeb. ex Spreng. new to Novosibirsk Oblast and Juncus tenuis Willd. new to Altai Republic have been found. Data on new locations of Eragrostis amurensis Probat., Atriplex oblongifolia Waldst. et Kit., Spergularia rubra (L.) J. et C. Presl, Lepidium ruderale L., Epilobium pseudorubescens A. Skvorts., Euphorbia he lioscopia L., Chaiturus marrubiastrum (L.) Ehrh. ex Reichenb., Mentha suaveolens Ehrh., Petunia × hybrida Vilm. rare in Novosibirsk Oblast, Altai Krai and Altai Republic are presented.

A list of vascular plant species present in the Tuvinian depression but absent in depressions of South Tuva and West Mongolia has been compiled. It is shown that Tannu-Ola mountain range is a boundary for southenly distribution of some steppe species. The range also forms a barrier for moisture carrying air masses. As a result the flora of the Tuvinian depression is enriched by forest and meadow species.

The article describes the features of computer system for description, studying and identifi cation of various biological taxa, based on a morphological characters. It highlights problems of translation of information into an electronic format. Described examples of created databases - “Native and introduced conifers taxa of North-West European part of Russia” and “Dendrophilous insects of Central Russia”, as well as some other domestic and foreign electronic databases.