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

FIELD TRIP SITES
All sites are situated in Asveja Regional Park. The Park was established in 1992 to
conserve the lake system of Asveja, its natural and cultural-historical values. The area of the
Park was formed by the last glacier, on elevations of terminal moraines. Its territory is
characterized by an exceptional abundance of glacial formations. The most important natural
accent of the Park – lake Asveja, the longest lake in Lithuania. Apart from Asveja, there are
30 lakes in the Park. Half of the Park’s territory is occupied by forests comprising a wide
variety of stands.
Valley of the Žverna rivulet
Lithuania, Asveja Regional Park, Molėtai district, Dubingiai forest district, forest squares No
33–31, 55 o 03’ N 25 o 34’E
Broad-leaved forest in a valley of a rivulet. North of the road – Žverna hydrographic
Sanctuary, established for conservation of natural features of the forest rivulet (0.8 km long)
and its valley. Woodland key habitats of broad-leaved forests and wetland forests type. Stands
of old oaks (Quercus robur) and presence of deadwood make good habitat for lichens and
fungi. No detailed lichenological or mycological studies performed there, though several
noteworthy species were recorded from this area: Bulgaria inquinans, Agonimia allobata,
Calicium adspersum, Cliostomum corrugatum, Sclerophora coniophaea.
Blužnėnai forest
Lithuania, Asveja Regional Park, Švenčionys district, Purviniškiai forest district, forest
squares No 135, 136, 139, 140, 789, 55 o 00’ N 25 o 39’E
Wetland forest with alders (Alnus glutinosa) and spruces (Picea abies), inspersed with
patches of old oak (Quercus robur) stands. Woodland key habitat of wetland forest type. The
presence of deadwood and humid microclimate create good conditions for fungi or lichens,
but the area has never been studied in detail. Few noteworthy lichens are known from this
forest: Chaenotheca chlorella, Arthonia arthonioides, Lobaria pulmonaria.
Valley of Jurkiškis and Stirnelė (Melnyčėlė) rivulets
Lithuania, Asveja Regional Park, Molėtai district, Dubingiai forest district, forest squares No
1071, 1077, 1124, between the lakes Asveja and Suoselis, 55 o 04’ N 25 o 25’E
Valley of two confluent rivulets – Stirnelė (1.3 km length) and Jurkiškis (other name –
Melnyčėlė, 1.2 km length). The beds of the rivulets are stony, with numerous boulders
bearing a comparatively rich aquatic lichen flora, including Red Data Book species Leptogium
lichenoides. Steep and high slopes are overgrown with deciduous stands where old trees
(especially Fraxinus excelsior) host noteworthy calicioid lichens including Sclerophora
farinacea and Chaenotheca cinerea. Mycologically the area has not been studied.