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On Moss Flora of the Sokhondinsky State Nature Biosphere

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On Moss Flora of the Sokhondinsky State Nature Biosphere Arctoa (2009) 18: 141-150 ON MOSS FLORA OF THE SOKHONDINSKY STATE NATURE BIOSPHERE RESERVE (ZABAIKALSKY TERRITORY) К ФЛОРЕ МХОВ СОХОНДИНСКОГО ГОСУДАРСТВЕННОГО ПРИРОДНОГО БИОСФЕРНОГО ЗАПОВЕДНИКА (ЗАБАЙКАЛЬСКИЙ КРАЙ) OLGA M. AFONINA1 ОЛЬГА М. АФОНИНА1 Abstract The preliminary data on the moss flora of Sokhondinsky State Nature Biosphere Reserve are presented. They are based mainly on the bryofloristic exploration of the upper forest belt in the upper course of Bukukun River in 2008, as well as on some moss collections made by staff of the Reserve and of the Botanical Garden of the Far Eastern Branch of RAS. Annotated list includes 186 species and two varieties, 18 species among them are new for the moss flora of Zabaikalsky Territory. The findings of some rare species, e. g. Aongstroemia orientalis, Bryoerythrophyllum latinervium, Ochyraea mollis, Pohlia tundrae, Schistidium subjulaceum, Sema- tophyllum substrumulosum Syntrichia laevipila are of interest for the moss flora of Russia as a whole. Резюме Приводятся предварительные данные по флоре мхов Сохондинского государственного природного биосферного заповедника, основанные на бриофлористических исследованиях, проведенных в 2008 г. в верховьях р. Букукун и охатывающие в основном верхний лесной пояс. Были изучены также коллекции, собранные сотрудниками заповедника и Ботанического сада ДВО РАН в разные годы. Представленный здесь аннотированный список мхов включает 186 видов и 2 разновидности, из них 18 видов являются новыми для Забайкальского края. Определенный интерес представляют находки таких редких видов для флоры мхов России, как Aongstroemia orientalis, Bryoerythrophyllum latinervium, Ochyraea mollis, Pohlia tundrae, Schistidium subjulaceum, Sematophyllum substrumulosum, Syntrichia laevipila. KEYWORDS: mosses, Bryophyta, flora, Russia, Siberia, Zabakalsky Territory, Sokhondinsky State Reserve, phytogeography INTRODUCTION khondo mountain massif with two flat dome tops, Sokhondinsky State Nature Biosphere Reserve Bolschoe and Maloe Sokhondo of 2508 and 2404 was founded in 1973. The reserve is situated in m elev. correspondingly. In geological respect Kyra district of Zabaikalsky Territory in the high- Sokhondo Range is a granite intrusion of com- est part of Khentei-Chikoi Upland, its area occu- plex petrographic composition surrounded by sed- pies 2110 sq. km. The upland is strongly cut by imentary rocks (limestones, sandstones, schists, rivers and has average mountain erosion-denudat- siltstones). In the territory of the reserve there are ed relief. In the center of the reserve there is So- some other mountains: Sopka-Yan (2332 m), Bal- 1 – V. L. Komarov Botanical Institute Rus. Acad. Sci., Prof. Popov Str., 2, St. Petersburg, 197376 Russia – Россия 197376, Санкт-Петербург, ул. Проф. Попова, 2, Ботанический институт им. В. Л. Комарова РАН; e-mail: [email protected] 142 OLGA M. AFONINA Fig. 1. Collecting localities of mosses in Sokhondinsky State Nature Biosphere Reserve: 1. Upper Bukukun River, surroundings of winter hut “Upper Bukukun”, Ernistyi, Zagadochnyi Creeks. [A.V.Galanin, A.V.Belikovich, 2000; O.M.Afonina, 2008] 2. Upper Bukukun River, surroundings of winter hut “Bukukun Lake” [A.V.Galanin, 1983; A.V.Galanin, A.V.Belikovich, 2000; O.M.Afonina, 2008] 3. Upper Bukukun River. Bukukun Lake [A.V.Galanin, 1983; O.M.Afonina, 2008] 4. Sokhondo Mountain [A.V.Galanin, 1983; A.V.Galanin, A.V.Belikovich, 2000] 5. Burecha River, Valley of Burecha River, Schergen-Daban Creek [I.S.Efimova, 1982; A.V.Galanin, 1982; Kurbatova, Z.A.Vasilchenko, 1982; Z.A.Vasilchenko, E.Baranova, 1983; A.A.Korobkov, 2005] 6. Tsagan-Ula Mountain [A.V.Belikovich, 2000] 7. Balbasnyi Mountain, Balbasnay River [Z.A.Vasilchenko, 1981] 8. Ugdyri Lake [I.S.Efimova, 1982; A.V.Galanin, 1982] 9. Narja Lake [I.S.Efimova, 1982] 10. Enda River [A.V.Galanin, A.V.Belikovich, 2000; A.V.Galanin, A.V.Belikovich, 2003; A.A.Korobkov, 2005; L.S.Yakovchenko, 2006] 11. Upper Buninda River [A.V.Galanin, 1982; A.V.Galanin, A.V.Belikovich, 2001] 12. Agutsa River [A.V.Galanin, A.V.Belikovich, 2001; G.P.Urbanavichus, 2000; L.S.Yakovchenko, 2006] basnyi (2232 m), Tsagan-Ula, etc. Climate of this belt is represented by Dryas and moss-lichen tun- territory is ultracontinental and is characterized dras, nival alpine shortgrass meadows with pools. by great differential of daily and yearly tempera- Mosses are mostly on rocks: Andreaea rupestris tures and high insolation. The mean annual tem- var. papillosa, Grimmia elatior, G. incurva, G. perature is – 2.9°C and annual precipitation is 340 longirostris, Racomitrium lanuginosum; or on mm in valleys and 650-700 mm in mountains, fine soil spots: Anomobryum julaceum, Aongstro- the most quantity (60-80%) is falled in July-Au- emia orientalis, Dicranum groenlandicum, D. gust. spadiceum, Ditrichum heteromallum, Encalypta Vegetation corresponds with five altitudinal ciliata, Loeskypnum badium, Ochyreae mollis, belts. The upper one, “goltsy” belt (above 2000- Oligotrichum falcatum. “Subgoltsy”, or elfinwood 2100 m alt.), occupies the tops of Sokhondo, Tsa- belt (1900-2000 m alt.) is characterized by the gan-Ula and Balbaschnyi Mts. Vegetation of this presence of formations of Pinus pumila or Pinus Moss flora of the Sokhondinsky Nature Reserve 143 sibirica forests with Pinus pumila. Mosses togeth- made by staff of Sokhondinsky Reserve. First er with lichenes form dense cushions on boul- collections of a professional bryologist, L.V. Bar- ders (Dicranum acutifolium, Hedwigia ciliata, dunov, were made in 1964, but unfortunately no Pleurozium schreberi, Rhytidium rugosum, San- results were published. Only the data on find- ionia uncinata) or between boulders (Grimmia ings of Aongstroemia orientalis and Lindbergia jacutica, Paraleucobryum longifolium, Polytri- brachyptera were included into Handbook of chastrum alpinum, Stereodon plicatulus); rock mosses of Central Siberia and the Red Data Book surfaces are covered by Cynodontium asperifoli- of Chita Province and Agin-Buryat Autonomous um, Grimmia elatior, Ulota curvifolia. Area (Bardunov, 1969, 2002). In 2008 the upper The upper forest belt (1700-1900 m alt.) is course of Bukukun River was explored by the au- represented by forests with Larix dahurica and thor. Identification of moss collection gathered Pinus sibirica, sometimes with admixture of Bet- here as well as of other collections kept in the ula platyphylla and Populus suaveolens. Moss reserve results in the annotated list of 187 spe- cover in these forests is well developed, the main cies. Collecting localities on territory of Sokhon- dominants are Dicranum polysetum, D. spadice- dinsky Reserve are shown in Fig. 1. um, Pleurozium schreberi, Polytrichum com- ANNOTATED LIST OF MOSSES mune, Ptilium crista-castrensis, Sanionia unci- In the following list the nomenclature of moss- nata; in wet forests Aulacomnium palustre and es is given according to Ignatov, Afonina, Igna- Sphagnum spp. are common; on trunk bases there tova et al (2006). After the species name the num- are Dicranum flagellare, D. montanum, Platygy- bers of localities where the species has been col- rium repens, Plagiothecium laetum, Pylaisia lected are given in bold (cf. Fig. 1), further the polyantha; on rotten wood Brothera leana, Di- main types of habitats are given, for rare species cranum fragilifolium, D. montanum, Eurhynchi- the label data are cited with indication geograph- astrum pulchellum, Tetraphis pellucida usually ical coordinates and elevations. The numbers of occur. Rather great diversity of mosses in upper specimens collected by the author are listed at forest belt is a result of the diversity of habitats: the end of paragraph with indication of presence stones, boulder fields, rock outcrops, banks of of sporophytes; for the specimens gathered by creeks, streams and lakes. In these habitats some other collectors their names are given. New spe- rare species were collected: Didymodon gaochie- cies for Zabailalsky Territory are marked by as- nii, D. hedysariformis, Grimmia mollis, Isoptery- terisk (*). All cited specimens are kept in LE. giopsis alpicola, Pohlia tundrae, Schistidium Abietinella abietina (Hedw.) M.Fleisch. – 1,2,3: rather sordidum, S. subjulaceum, etc. common on dry rocks, boulders, on soil in larch for- Forests of the lower forest belt (1400-1700 m ests with Rhododendron dauricum and Pinus pumila alt.) are formed by Larix dahurica, Pinus sylves- on south-facing slopes, # 04808, 05308, 05408. tris, Betula platyphylla, Populus tremula. Vege- Amblystegium serpens (Hedw.) Bruch et al. var. ser- tation of the forest-steppe belt (700-1400 m alt.) pens – 1: 49°39’N, 110°59’E, alt. 1557 m, in cracks covers mainly steep south-facing slopes in south of rock outcrops on left river bank, # 07208. and south-east parts of the reserve. Bryofloristic A. serpens (Hedw.) Bruch et al. var. juratzkanum investigation of the two latter belts in territory of (Schimp.) Rau & Herv. – 5: flood plain forb larch forest, 21.VIII.1982, Galanin. the reserve was not carried out, some fragmen- Amphidium lapponicum (Hedw.) Schimp. – 5: on tary data were obtained in the course of identifi- rocks, 22.VII.1983 fr., Vasilchenko, Baranova. cation of some specimens collected by geobota- Andreaea rupestris Hedw. var. papillosa (Lindb.) nists. Podp. – 1,2,3: common on rocks in mountain Dr- Sokhondo Mountain has attracted attention yas tundra, on rocks and boulders of rock fields, # of the researchers for a long time. First botanical 05908 fr., 06008, 06508, 06708, 06908; 07408 fr., collections were made by N.P. Sokolov, partici-
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