L. Hably szerk.: Studia Botanica Hungarica 19. 1986 (Budapest, 1986)

Révay, Ágnes: Dematiaceous Hyphomycetes inhabiting forest debris in Hungary II.

STÜDIA XIX. BOTANICA HUNGARICA (Antea: Fragmenta Botanica) 1986 p. 73-78 Dematiaceous Hyphomycetes inhabiting forest debris in Hungary II. By Á. RÉV AY (Received November 30, 1985) Abstract: Twenty-five species of lignicolous and other saprophytic Hyphomycetes belonging to 20 genera are reported from Hungary. Some of them are common species. Several other taxa represented by very few Hungarian records have also been discovered, 7 of them being new to Hungary. A preliminary account of 47 dematiaceous Hyphomycetes collected in Hungary has been published earlier (RÉVAY 1985). In the present contribution twenty-five Hyphomycetes are reported. Twenty-two species which had not previously been recorded by the author in this series are reported together with additional information on two species reported previously. The sites chosen for study were in the Börzsöny Mountains along the Morgó stream, in the Bükk Mountains along some mountain streams, as well as in SW Hungary (Zala County). Samples were collected from terrestrial forest litter, from brooks as well as from treehollows. The collected samples were examined immediately after transportation to the laboratory and were observed again after several days' incubation in moist chamber condition. The material of the species listed below was collected by the author and J. GÖNCZÖL. The examined material is deposited in the Mycological Herbarium of the Hungarian Natural History Museum, Budapest. SPECIES ACCOUNT Actinocladium rhodosporum Ehrenberg, Jahrb. Gewächsk., 1: 52. 1819. (Pl.I. Fig.l.) Conidiophores simple, erect, straight, dark brown, paler towards the apex, 22-70 /im long and 3-4 Aim thick. Conidia brown, consisting of a 10-19 x 4-5 jam stalk and 3 arms radiating at an angle of 30°-70°, arms 25-50 jum long and 4.8-6.4 urn wide. This is not a common species in Hungary. - Collected on dead wood of Fagus silvatica

. near the stream Pénz-patak in the Bükk Mts., 30.5.1985. Aegerita Candida Pers. ex Fr., Syst.Mycol. 3: 220, 1823. Sporodochia globose, 150-200 urn in diam.Conidia'acrogenous, ovoid or obpyriform, hyaline, 12-20 urn in diam.This is a very common speci3s on rotten wood. - Collected on dead wood, Bánya-hegy, Bükk Mts, 29. 5.1985., near Rejtek in Bükk Mts, 9.10.1985., near the stream Morgó-patak, Börzsöny Mts., 29.3.1985. Bactrodesmium obovatum (Oudem.) M.B. Ellis, Mycol. Pap. Kew, 87:42, 1963. (Pl.T. Fig.

3.) Sporodochia punctiform, black, shining. Conidiophores fasciculate, hyaline or subhyaline, simple or branched, 25-60 x 2.5-3.5 jam. Conidia dark brown, with 3-5 thick and black septa, 38-42 x 1619 jam, the basal cell paler than the others, the two terminal cells usually containing oil drops. This species is known in Europe - Great Britain, Netherlands and Czechoslovakia - and in North 7 3