Home – Home – Jornals – Flora and Vegetation of Asian Russia 2018 number 3

The results of the analysis of literature on ecology and geographical distribution over zones and subzones of 60 Closterium Nitzsch ex Ralfs species of West Siberian flora are presented. Data on halobity, active water reaction and saprobity are given for each of species.

On a level with research of the species diversity lichen biota of the Tuva Republic was analysed and appraised participation of 1162 lichen species from 225 genuses at main types of high-mountain phytocoenoses.

Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101, e-mail: nat.vlasova54@yandex.ru Data on type specimens for 6 taxa of the genus Silene L., 2 taxa of the genus Lychnis L., described from Eastern Siberia, are given. Taxa are kept in M.G. Popov Herbarium of the Central Siberian Botanical Garden, SB RAS (NSK). The 3 lectotypes, 1 isolectotype are designated, the 4 holotypes, 2 isotypes, 3 paratypes, the 1 authentic specimen are identified. A new nomenclatural combinations S. amoena L. f . glabra (Peschkova) N.V. Vlassova, comb. nov., S. chamarensis subsp. udocanica (Peschkova) N.V. Vlassova, comb. nov. are proposed. New variation S. amoena L. var. charaensis N.V. Vlassova is described from Zabaikalskiy Krai.

In this paper we present a list of type specimens of 20 taxa belonging to four genera of the Cyperaceae family that are stored in the M.G. Popov Herbarium in the Central Siberian Botanical Garden SB RAS (NSK) and partly in the Herbarium of the V.L. Komarov Botanical Institute RAS (LE). For each type specimen we give category, quote of the original label, and protologue data, as well as comments. We list 46 type specimens, including 4 lectotypes, 3 isolectotypes, 5 holotypes, 7 isotypes, 18 paratypes, and 9 authentic specimens. Lectotypes for name of 4 taxa were designated: Carex behringensis C.B. Clarke var. pallidior Popov, C. leucochlora Bunge var. subglabra V.N. Vassil., C. sylvatica Huds. f. angustifolia Litv., Scirpus affi nis Roth. var. maritimoides Drob. f. megalostachys Litv. Information about the 8 holotypes, 4 isotypes, 2 lectotypes, 3 isolectotypes, 2 syntypes from Herbarium LE, MW are cited.

As a result of identification of herbarium collections of 1985, 1989-1991 from the Bashchelakskiy Range, 49 species absent in the publications on the flora of this territory have been noted.

The ontogenetic structure of the сoenopopulation of Th ymus roseus was studied in different conditions of East Kazakhstan. It is established that in the steppes at the foothills and along the mountain tops of the biomorph of the species - monocentric, in the steppes along the slopes of the mountains - implicitly polycentric, in the communities of alpine meadows - explicitly polycentric. In individuals of the species of different biomorphs, biological features have been identified that determine the type of the characteristic ontogenetic spectrum of the coenopopulation. All the investigated coenopopulations are normal, in most cases they are full-membered. Th eir ontogenetic spectrums basically do not coincide with the characteristic type. Changes in the ontogenetic spectrum are associated with the conditions of growth (lack of a free substratum, high phytocenotic competition) and features of ontogenesis (skipping the mature generative state).

Variability of morphometric features in individuals from three cenopopulations of the species Rhaponticum car thamoides (Willd.) Iljin, rare for the Altai Republic, has been studied. Insuffi cient precipitation in the period preceding flowering is a limiting factor for the growth and development of plants of this species. Th e studied cenopopulations on the Seminsky Pass and the Krasnaya Mountain are normal definitive, their individuals are characterized by a suffi ciently high seed production. As a result of the moderate anthropogenic load from the fragments of rhizomes left in the soil during the harvesting of the underground part of plants, the adult generative plants become rejuvenated and the proportion of virgin individuals increases. In our opinion, intensive, uncontrolled exploitation in the collection of roots leads to a violation of the demographic structure of the cenopopulations. The recommended protection measure is the regulation of anthropogenic load in these habitats. It is necessary to further control the condition of the cenopopulations of this rare and resource species.

The article summarizes data on diversity, cenotic features, ecology and distribution of aquatic vegetation of the Lemnetea class in the south-east of West Siberia. 143 complete geobotanical relevés performed in 1995-2017 in Novosibirsk and Kemerovo regions, Altai Territory and Altai Republic were used. The cenotic diversity of the Lemnetea class identified was 11 associations of 3 unions and 1 order of the Braun-Blanquet approach, which is slightly higher than that identified for East Siberia (8 synthaxa of the association rank). Ceratophylletum demersi , Lemno-Utricularietum vulgaris and Stratiotetum aloidis were found in all natural zones - the forest belt of the Altai-Sayan mountain system, the forest-steppe and steppe zones. Lemno-minoris-Spirodeletum polyrhizae and Lemno-minoris-Riccietum fl uitantis were noted only in the fresh waters of the Altai-Sayan mountain system and the Ob region. Salvinio natantis-Spirodeletum polyrhizae , and Utricularietum macrorhizae were found only in the forest-steppe of the Ob region. Communities of Potamogetono-Ceratophylletum submersi association were noted in the forest-steppe and steppe of the plain part of the area surveyed, which is due to the presence of brackish water bodies there.

Defined seed production of three grades grass Lolium perenne L. destination and two samples from wild VIR. It was found that it is best to realize their potential seed mature plants (g₂) of the second year of life. For all varieties revealed a significant correlation between the number and weight of seeds from the ear, significant variation from year to year of seed production potential and its weak link with the real seed productivity.

The resource base of herb Achillea millefolium L., Hypericum perforatum L., Vaccinium myrtillus L. St. John’s wort and shoots of blueberries on individual thickets in the Novosibirsk region. Chemical taxation of the studied thickets is carried out, it is established that all raw materials meet the requirements of regulatory documentation.

The mineral composition of certain plants in the buckwheat fl ora of Siberia has been assessed in terms of the quantitative content of macro- (calcium, potassium, sodium, iron) and micronutrients (zinc, barium, strontium, bromine, cobalt, silver, chromium, antimony, arsenic, gold). The prospect of using plants as raw sources for the manufacturing of phytodrugs was justifi ed.

The results of long-term studies on the effect of ultrasound and growth regulators on the rhizogenesis of Ribes atro purpureum C.A. Meyer are presented. It was found that ultrasound in the joint treatment of cuttings with solutions IBA, Tellura-M, Artemia and Solution No. 3, had no signifi cant effect on rhizogenesis. Only in the variants of Artemia + ultrasound and water + ultrasound it positively influenced the number of roots of the 2nd and 3d orders of branching. Cuttings were better rooted in the variant of Artemia, and in the variant 1 % Tellurium-M formed more roots of the 2nd and 3d orders of branching. Ultrasound and growth regulators had little effect on the rooting and rhizogenesis Ribes atropurpureum , rather than growing conditions.