Zs. P. Komáromy szerk.: Studia Botanica Hungarica 15. 1981 (Budapest, 1981)
Gönczöl, János; Révay, Ágnes: Data to the knowledge of microscopic fungi of the Ócsa Nature Conservation Area
STUDIA BOTANICA HUNGARICA (Antea: Fragmenta Botanica) XV. 1981 p. 19-24 Data to the knowledge of microscopic fungi of the Ocsa Nature Conservation Area By J. GÖNCZÖL and Á. RÉVAY (Received November 30, 1980) Abstract: A total of 82 species of microfungi are listed collected from 47 host plants occurring on marshland "Ocsa égerláp". Four of these are new data to Hungary. The authors present of their mycologlcal research of the nature conservation of the "Ocsa égerláp" marshland. The data originate from the territory named "Nagyerdő" near Ócsa village as well as the fields nearby, comprising 10 km 2 . The main part of the samples was collected in a marshy-woodland (Fraxino pannonicae-Alnetum) KOMLODI (1958) and in marshy meadows (Molinetum coerulae) KOVÁCS (1956). This territory is a small part of the marshland of "Ócsa-Dabasi turjánvidék" lying on the Great Hungarian Plain, between the Danube and the Tlsza rivers. The mycoflora of this area has not been studied until now. Apart from some previous sporadic collections, the data are based on the collection trips which were made from 1978 till 1980. This paper is the first part of the research of microfungi of the marshland "Ocsa-Dabasi turjánvidék". All of 82 species of micrcfungi on 47 host plants are listed. From these the following are new fungus data to Hungary: Cytosporopsis umbrinus (Bon.) Höhnel on Alnus glutinosa (L.) Gaertn.; Entyloma fergussonii (Berk. et Br.) Plowr. on Myosotis palustris (L.) Nath; Libertella fraxinea Oganova on Fraxinus angustifolia Vahl subsp. pannonica Soó et Simon; Puccinia trabuti (Thuem.) Winter on Lamium galeobdolon (L.) Cv. The specimens listed below are deposited in the Herbarium of Botanical Department of the Hungarian Natural History Museum, Budapest. Myxomycètes 1. Hemitrichia clavata (Pers.) Rost. - On dead wood, 17.10.1980. (spores: 8-10 fim). 2. Lycogala epidendrum ( L.) Fries - On dead wood, 17.10.1980. (spores: 4-7 jum diam.) . 3. Metatrichia vesparium (Batsch) Nann.-Brem. - On dead wood, 17.10.1980. (spores: 10-11,5um). 4. Physarum nutans Persoon - On decaying trunk. 17.10.1980. (spores: 8.8-10 urn diam.). 5. Stemonitis splendens Rost. - On decaying trunk, 17.10.1980. (spores: 7-9 urn diam.). 6. Trlchia varia (Pers.) Pers. - On dead wood, 17.10.1980. (spores: 11-15jum diam.).
