Home – Home – Jornals – Flora and Vegetation of Asian Russia 2017 number 3

The present paper considers a species composition of foliar pathogenic micromycetes of Salix L. introductions growing in introduction centers and landscape plantations of five Siberian cities. Nine pathogens are revealed, two of them are given to Siberia for the first time. Morphology, pattern of fungi biology and pathogenesis are described. Host plants, general distribution of phytopathogens and occurrence in the model area are indicated. Intraspecific pathogen resistance is established for certain Salix L. introductions.

New data about some genus Linum L. species in flora of Siberia are presents. In Siberia, there are 10 species of this genus, belonging to the 2 subgenera ( Linum and Cathartolinum (Rchb.) Svetlova) and 3 sections ( Stellerolinum Juz. ex Prob., Linum and Adenolinum (Rchb.) Juz.). Th e section Adenolinum comprises 7 species ( L. perenne L., 2 subspecies L. komarovii Juz., L. altaicum Ledeb. ex Juz., L. amurense Alef., L. baicalense Juz., L. violascens Bunge and L. pallescens Bunge) classifi ed into 3 subsections ( Longiunguiculata Svetlova, Amurense Svetlova and Breviun guiculata Svetlova). According to its morphological characteristics L. baicalense occupies an intermediate position between subsections Longiunguiculata and Breviunguiculata . There are several interested samples ( L. perenne var. genuinum Krylov, L. perenne var. alpinum (Jacq.) Krylov and L. perenne var. violascens (Bunge) Krylov) in the Krylov Herbarium (Tomsk, TK). It is shown, that these patterns are synonymous with L. perenne , L. altaicum and L. violascens , respectively. The taxonomic significance of some characteristics for Siberian species are discussed. The key for definition of the genus Linum species in flora of Siberia is made. The lectotype of L. stelleroides Planch. are selected. Geographical distribution of species of the genus Linum in the investigated territory is essentially added and corrected.

Independence of G. albifl orum and G. krylovii is proven, new species G. malyschevii Troschkina is described from the East Sayan mountains as the result of a comparative morphological, palynological, chorological analyses of the species. The information about the type material is given, diagnostic features, distribution maps, key for determination to species are provided for all taxa.

The short literary review teratomorphes various taxons of the higher plants is provided. Explicitly teratomorphes of dandelions are considered. The analysis of anomalies of the dandelions arising under the influence of environmentals is given.

The study of microevolution relationships between morphologically close species E. kamczadalorum (Nevski) Tzvelev, E. charkeviczii Probat., and E. kronokensis (Kom.) Tzvelev from Russian Far East was carried out by ISSR-method. The results confirmed the previously obtained data that Kamchatic endemic species E. kamczadalorum is genetically isolated from the complex E. charkeviczii s. l. The latter includes morphotypes with different degrees of expression in diagnostic characters (rachilla’s and lemma’s trichomes). It is widely distributed not only on the Kamchatka Peninsula, but also in continental areas of the Magadan region and, probably, the Republic Sakha (Yakutia). Th e species E. kronokensis which is similar in morphology to E. charkeviczii s. str., but distinctly separated from the latter on ISSR-markers.

Results of the critical revision of Kazakhstanian Boraginaceae collections from the herbaria LE, NS, NSK, TK, KUZ, ALTB (Russia), AA, KG (Kazakhstan), TASH (Uzbekistan) carried out in 1996-2016 are presented. Th e species Myosotis austrosibirica O.D. Nikif. new for the flora of Kazakhstan is recorded. New localities of 18 rare species from genera Gastrocotyle Bunge, Heterocaryum DC., Lappula Gilib., Lepechiniella Popov, Myosotis L. and endemic species Lappula rupestris (Schrenk) Guerke, Lepechiniella saurica (Bajt. et Kudabaeva) Ovczinnikova, Rochelia leiosperma Golosk., according to the botanical-geographical division of Kazakhstan are revealed. Th e reference to the publication of first description and main publications by flora of Kazakhstan are given. Text of original label of new localities with citation of region and place of storage are presented. Information about geographical distribution, diagnostic features and type specimens (if it is necessary) are given in comment.

As a result of specially conducted study seven alien plant species not noted in the Tyva Republic earlier ( Beta vul garis , Cirsium vulgare , Helianthus tuberosus , Lactuca sativa , Oenothera speciosa , Phacelia tanacetifolia , Solidago canadensis ) were revealed. Most of finds are plants escaped from plantings (ergasiophytes). In addition, new localities of eight adventive ( Atriplex hortensis , Elsholtzia ciliata , Galinsoga parvifl ora , Ipomoea purpurea , Lactuca serriola , Matricaria perforata , Saponaria officinalis , Xanthium strumarium ) and three native ( Bolboschoenus planiculmis , Dactylis glomerata , Tripolium vulgare ) species were found. Species names are given in accordance with “Synopsis of Flora of Asian Russia” (2012). Collected dried plant specimens are kept in NS.

Floristic compendium “Flora of Central Siberia” published in 1979 was the first experience of floristic grid mapping on territory of Russia. The compendium contents grid maps for 1284 species and subspecies, representing 53.8 % of the fl ora. The grid system used in compendium coincides with nomenclature and national grid system of Russian geographical maps that allowed us to determine coordinates of grids and perform geographical binding of 34 893 records of mapped species. Accuracy indication of coordinates depends on the size of grid and is ±(14-18) km for the compendium. Such accuracy is quite acceptable for small-scale mapping of distribution areas of species of such large area as Central Siberia. The created database can become the basis for organizing the comprehensive information system on localities of vascular plant species within the region. Such a system is needed for various tasks of botany, biogeography, ecological modeling and nature conservation.

The results of study of chionophilous meadows of the Altai-Sajan Mountain Area have been generalized. Th eir species composition revealed on the base of 74 geobotanical releves. Alpine and arctoalpine species form the basis for thecoenoflora. Structural organization of chionophilous meadows is considered, a dendrogram refl ecting levels of structural organization of syntaxa is built on thebase of Jaccard coeffi cient.

The best time for a propagation of Myricaria bracteata and M. longifolia hardwood cuttings in Novosibirsk is the first decade of May. Cuttings that are planted in expanded clay and sand root well. A small concentration of growth stimulator IBA (Indole-3-butyric acid) doesn’t have an evident impact on the number of rooted cuttings. However, it contributes to development of a more powerful root system. High concentrations of IBA inhibit the process of root formation and at increased concentrations a basal part of a cutting dies off. Use of IBA water solution turn out to be more effi cient than after treatment with alcoholic solution or powder.