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

Among the collected 81 herbarium specimens 34 species of pyrenomycetous fungi
were identified. They represent nine orders: Chaetosphaeriales, Coronophorales,
Diaporthales, Hypocreales, Sordariales, Xylariales, Botryosphaeriales, Dothideales,
Pleosporales. The highest number of species (17) belonged to the order Xylariales. Diatrype
disciformis (Hoffm.) Fr., Valsa abietis Fr. and Dothidea sambuci (Pers.) Fr. were recorded for
the first time in Lithuania.
The identified species were found on various species of woody plants such as Pinus
sylvestris L., Picea abies (L.) H. Karst., Fagus sylvatica L., Quercus robur L., Betula pendula
Roth., Acer platanoides L., Corylus avellana L. and Frangula alnus Mill. The highest number
of species was found on Fagus sylvatica. The pyrenomycetous fungi inhabited such types of
substrates as dead lying twigs, dead lying branches, dead lying trunks, dead attached twigs,
dead attached branches and stumps. The majority of the studied species was found on dead
lying twigs and branches.
The studied fungi inhabited wood debris with diameter from 0.2 up to 38 cm. Most of
the inhabited substrates were 1.5 cm in diameter.
PRELIMINARY DATA ON PYRENOMYCETES AND
LOCULOASCOMYCETES (Ascomycota) OF ALLUVIAL FORESTS (LITHUANIA)
T. IZNOVA, J. RUKŠĖNIENĖ
Vilnius University, Department of Botany and Genetics, M. K. Čiurlionio Str. 21/27, LT-
03101, Vilnius, Lithuania
E-mails: tatjana.iznova@gf.vu.lt, jone.rukseniene@gf.vu.lt
The pyrenomycetes and loculoascomycetes were collected in six alluvial forests in
Lithuania: Ignalina district (the Pakalniškiai and the Raistas forests), Lazdijai district (the
northern part of the Ančia lake and the Rinkotas forests), Trakai district (the Spindžius forest)
and Vilnius district (the Šveicarai forest). These forests belong to various EEC habitats.
The material was gathered during April – June and September – November, 2010. The
route method and two methods of stationary plots were applied for investigation of ecology
and diversity of the studied fungi. The samples of pyrenomycetes and loculoascomycetes
were collected using these methods twice in a month, in total 28 field trips in the abovementioned
alluvial forests.
In these forests circular plots (100 m 2 of area, 5.8 m radsius) were chosen for research
using two stationary methods:
1. In the above-mentioned forests, five plots have been selected for studies. In
these plots samples of woody plant and grass debris, bearing pyrenomycetes and
loculoascomycetes were collected. Approximately 15 samples were taken in each plot.
2. In every studied forest five plots were selected for different investigation
method. In these plots, 100 different samples of woody plant and grass debris were gathered
by going round. Of these, only the samples with pyrenomycetes and loculoascomycetes were
chosen for further research.
Using both methods, preliminary results of various ecological aspects of the studied
pyrenomycetes and loculoascomycetes are presented.