| Abstract [eng] |
Material of this work was collected in the forest plots of Pūčkoriai environs (Pavilniai Regional Park) during September, October, November, May and June, 2006–2007. 303 herbarium specimens of various plant species were found. 87 species of pyrenomycetes and loculoascomycetes were identified. 19 species of studied fungi and one species of new genus are registered for the first time in Lithuania: Amphisphaeria pusiola P. Karst., Anthostomella cf. tomicoides Sacc., Astrosphaeriella applanata (Fr.) Scheinpflug, Byssosphaeria salebrosa (Cooke & Peck) M.E. Barr, Ceratosphaeria cf. aeruginosa Rehm, Coniochaeta cf. ligniaria (Grev.) Massee, C. malacotricha (Auersw. ex Niessl) Traverso, Cucurbitaria cf. naucosa (Fr.) Fuckel, Diaporthe arctii (Lasch) Nitschke, Eriosphaeria cf. vermicularia (Nees) Sacc., Eutypella cf. grandis (Nitschke) Sacc., E. padina (Nitschke) Nannf., Gnomonia cerastis (Riess) Ces. & De Not., Immotthia hypoxylon (Ellis & Everh.) M.E. Barr, Leptospora rubella (Pers.) Rabenh., Metasphaeria sp. Sacc., Ophiobolus cf. erythrosporus (Riess) G. Winter, O. tanaceti (Fuckel) Sacc., O. tenellus (Auersw.) Sacc., Requienella cf. seminuda (Pers.) Boise. Recorded species of pyrenomycetes and loculoascomycetes belong to 13 orders: Botryosphaeriales, Capnodiales, Chaetosphaeriales, Coniochaetales, Coronophorales, Diaporthales, Dothideales, Hypocreales, Hysteriales, Pleosporales, Sordariales, Trichosphaeriales, Xylariales and two groups of uncertain systematic position (Dothideomycetes incertae sedis and Sordariomycetes incertae sedis). The greatest number of above-mentioned species is established in the orders Xylariales (28), Pleosporales (17) and Diaporthales (10). Studied pyrenomycetes and loculoascomycetes were found on 21 species of woody, grass plants and species of unindentified deciduous trees. The greatest number of studied fungi is found on species of unindentified deciduous trees, Acer platanoides and Ulmus glabra. The greatest number of above-mentioned fungal species were identified on dead lying branch (47). In 20 studied species were registered on dead lying twigs and stems. Mostly ascomata of the collected species were found in bark (67 %), in wood – approximately three times less (19 %). Pyrenomycetes and loculoascomycetes inhabited wood debris, diameter of which varied from 0,1 up to 45,0 cm. The greatest number of samples with diameter of 0,7 and 1,1 cm, which respectively belong to the I and II classes of diameter, was found. Investigated three forest communities differ by the composition of species of pyrenomycetes and loculoascomycetes. The greatest number of studied fungal species (80 % of all registered species) was established in the community of Querco–Ulmetum campestris. Most of above-mentioned species, found in the three forest communities, belong to the order Xylariales, less – to the order Pleosporales. The greatest number of species of pyrenomycetes and loculoascomycetes were registered on dead lying branches in the communities of Alno incanae–Fraxinetum excelsioris and Querco–Ulmetum campestris, but these fungi were found on overwintered leaves of woody plants in community of Pruno padi–Alnetum incanae. According to the data of 2005 and 2006–2007 the greatest number of studied fungal species, found in the forest plot against Pūčkoriai exposure, represent the order Xylariales, less –the order Hypocreales. In 2006–2007 species of the orders Boliniales, Diaporthales, Hysteriales, Trichosphaeriales were absent. The greatest number of species of pyrenomycetes and loculoascomycetes were registered on dead lying twigs, belonging to the I class of diameter. |
