FUNGI AND LICHENS IN THE BALTICS AND BEYOND XVIII ...

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wooden crosses (11). According to light requirement on anthropogenic substrates, most numerous are species, whose ecological amplitudes vary from averagely photophilous to extraphotophilous. These species accounted for 47 % of all taxa diagnosed in cemetery. During the research three indifferent to light requirement lichen species were identified: Lecanora albescens, Lecanora pulicaris, Caloplaca citrina. According to dependence on air humidity in cemetery dominate mesophilous species, and to a lesser extent – xerophilous lichens. Extraxerophilous indexes are characterized to Physconia perisidiosa and Physconia grisea species. During the research extrahigrophilous species were not found on anthropogenic substrates. According to eutrophication level averagely nitrophilous species are most numerous (50 % of all species). 2 rather rare, 4 rather common, 7 common and 21 very common lichen species were identified on anthropogenic substrates in Bernardinai cemetery. Two species from the rather rare category were reported – Aspicilia contorta ssp. hoffmanniana and Scoliciosporum umbrinum. It is planned to further study diversity of lichens of same age cemeteries in different parts of Lithuania. LICHENS OF CALCAREOUS ROCKS IN FINLAND J. PYKÄLÄ Finnish Environment Institute, Natural Environment Centre, P. O. Box 140, FI-00251 Helsinki, Finland E-mail: juha.pykala@ymparisto.fi Calcareous rocks are threatened habitat types in Finland. The main threats are mining, building and forestry practices. Most calcareous rocks are very small, and thus vulnerable to changes in land use close to them. Lichens of calcareous rocks have been previously insufficiently known, although many rare species are known to occur only on calcareous rocks. During the years 2003–2008 120 calcareous rocks and lime quarries were studied in SW Finland. During the years 2009–2010 the study was expanded to cover all parts of Finland and additional 175 sites have been studied. The field work is continuing in 2011. The main aims are to study distribution and habitat characteristics of lichens of calcareous rocks and lime quarries in Finland, and to produce data for a more precise evaluation of their threat status. The results can be used to evaluate conservation and management needs of calcareous rocks and lime quarries and to develop management instructions for them. Over 13 000 specimens have been collected and up to date 137 lichens new to Finland have been found. The total number of calcicolous lichens is ca. 280 species, which is 16 % of all lichens occurring in Finland. The proportion of lichen species on calcareous rocks is more than 100-fold compared to the area of calcareous rocks. New localities have been found for most threatened lichens of calcareous rocks (e.g. Collema multipartitum, Nephroma helveticum, Peltigera retifoveata). Five species considered extinct from Finland have been refound (Caloplaca variabilis, Catapyrenium psoromoides, Coenogonium luteum, Gyalecta subclausa, Rinodina immersa). Numerous species of Verrucaria occur on calcareous rocks. 60 species new to Finland have been identified. However, a large number of species still remains unidentified. A strong south-north gradient occurs in the lichen flora of calcareous rocks. Many species occur only in southern or northern part of Finland. Many lichens on calcareous rocks are very rare. Small populations are typical to many species. Lime quarries are very important for many calcicolous lichens due to their large size. Several rare pioneer calcicolous lichens disperse rather effectively to lime quarries.
LICHEN STUDIES ON KARELIAN ISTHMUS (LENINGRAD REGION, RUSSIA) – HISTORY AND THE PRESENT SITUATION I. S. STEPANCHIKOVA, D. E.HIMELBRANT, E. S. KUZNETSOVA Department of Botany, St. Petersburg State University, Universitetskaya Emb. 7/9, 199034 St. Petersburg, Russia Laboratory of Lichenology and Bryology, Komarov Botanical Institute of RAS, Prof. Popov Str. 2, 197376 St. Petersburg, Russia E-mails: stepa_ir@mail.ru, d_brant@mail.ru, igel_kuzn@mail.ru Karelian isthmus is located in the north-western Leningrad Region between Gulf of Finland and Ladoga Lake and has a total area of ca. 15 000 km 2 . It is covered with coniferous and mixed forests, broad-leaved trees are relatively rare. The area includes many lakes and rivers. This land has been populated for a long time, so it is rich in settlements and agricultural lands, many of them abandoned. In different historical periods the isthmus belonged to Sweden, Finland, USSR and Russia. The lichen investigations on the Karelian isthmus can be divided into four periods. The first (1799–1918) is an initial period which begins from Christian Steven’s and William Nylander’s collections. The second (1918–1945) is a period of active work of Finnish and Soviet lichenologists on different sides of the Soviet-Finnish border. The third (1945–1992) is a period of Soviet studies. Considerable part of the area for a long time after the World War II was closed (as military zone), therefore not much lichen material was collected. The forth period (1992–nowadays) is characterized by intensive studies: after the Perestroika the Russian-Finnish border became not so insuperable, and this gave rise to the international scientific collaboration. During the last decade the environmental activity in Leningrad Region has developed, and the biodiversity studies have been conducted within the protected area management. During the critical revision of the herbaria (H, LE, LECB) in 2007–2011 we found materials by more than 60 collectors from Karelian isthmus. As a result, ca. 560 species of lichens and lichenicolous fungi were listed; significant part of these species (about 50) was found only as additional to the main species in the envelopes (not mentioned on the labels). Our own collections (2004–2011), mostly from the western part of the Karelian isthmus, include 375 species. Altogether ca. 650 species are known from the Karelian isthmus now, and the studies are in progress. LICHENS IN STREAMS AND RIVERS OF ESTONIA A. SUIJA, M. SCHMEIMANN Institute of Ecology and Earth Sciences, University of Tartu, Lai Str. 40, EE51005 Tartu, Estonia E-mails: ave.suija@ut.ee, merje.s@gmail.com Lichens can occur in various extreme habitats including inundated stones and treeroots in freshwater. This small, highly specialized group of lichens include representatives mainly of Verrucariaceae, Lichinaceae, Hymeneliaceae. There are about 250 species
Page 1 and 2: FUNGI AND LICHENS IN THE BALTICS AN
Page 3 and 4: CONTENTS Programme Field trip sites
Page 5 and 6: LICHENOLOGICAL SECTION E. Farkas, L
Page 7 and 8: Alternative trip: Šakymas Strict N
Page 9 and 10: production of conidia (a single con
Page 11 and 12: Among the collected 81 herbarium sp
Page 13 and 14: different fungal species of the sam
Page 15 and 16: FUNGI IN SOIL BELOW CORMORANT (PHAL
Page 17 and 18: FUNGI ASSOCIATED WITH SEED AND PLAN
Page 19 and 20: North America. Presence of this fun
Page 21 and 22: pathogen of shoots, and was detecte
Page 23 and 24: The frequency more than 10% showed
Page 25 and 26: 1. Disc surface waxy-looking - Belo
Page 27 and 28: ON THE LICHENS OF SVALBARD ARCHIPEL
Page 29 and 30: important because of the recently d
Page 31: EPIPHYTIC AND EPIXYLIC LICHENS IN G
Page 35 and 36: Nordic Lichen Flora vol. 4 - Parmel
Page 37 and 38: LIST OF PARTICIPANTS BELARUS Ann Te
Page 39 and 40: Dmitry E. Himelbrant, Faculty of Bi

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