Zs. K. Komáromy szerk.: Studia Botanica Hungarica 17. 1984 (Budapest, 1984)

Révay, Ágnes: Data to the knowledge of ascomycetous fungi inhabiting forest debris in Hungary

STUDIA BOTANICA HUNGARICA (Antea: Fragmenta Botanica) XVII. 1984 p. 5-13 Data to the knowledge of ascomycetous fungi inhabiting forest debris in Hungary By Á. RÉV AY (Received September 30, 1982) Abstract: Sixty-one species of Ascomycetes are listed from various forest debris in the Börzsöny Mts. in Hungary. From these six are new data for Hungary. A wide variety of naturally occurring substrata, such as fallen leaves, rotting wood, animal dung, decaying herbaceous plants or various submerged organic debris, has been examined by numerous mycologists for many years (CHESTERS 1950, WEBSTER 1956, SAITO 1956, PUGH 1958, CALDWELL 1963, CARRÉ 1964, HERING 1965). Since in Hungary these fungi are too incompletely known to obtain a picture of fungal decomposition of the organic debris of forests, in addition to decaying leaves of the litter, mainly rotting dead twigs and branches and in less quantity dead herbaceous plants as well as animal dung were collected. This paper presents the ascomycetous fungus data obtained in the forests of the Börzsöny Mts. in 1981. MATERIAL AND METHOD Sites chosen for study were in the Börzsöny Mts. along the banks of mountain streams (Morgó-patak, Szén-patak), where the streams were bordered largely by alder (

Alnus glutinosa [L.] Gaertn.) and only here and there mixed by willow (

Salix spp.) and mapple (

Acer spp.) (Aegopodium-Alnetum pannonicum Kárpáti I. et Jurkó). The further sites were the hill sides of the valleys (in the Morgó-hegy, Gálhegy, Somos-hegy, Fekete-hegy, Kelemen-hegy) where in the lower region Turkey oak forest (Quercetum petraeae-cerris Soó) and upper hornbeam-oak forest (Querco petraeaCarpinatum pannonicum Soó) dominated. Along the upper course of the mountain streams the forests mainly consisted of mixed beech forest (Melitti-Fagetum subcarpaticum Soó). The samples - mainly twigs and branches - were picked up at random from the litter surface and brought to the laboratory. One part of the samples was examined immediately after collection, other part was put into petri dishes with some water, then incubated under moist-condition for at least one month at room temperature. ENUMERATION OF SPECIES Pezizales - Humariaceae Chlorosplenium aeruginascens (Nylander) Karsten. Apothecia superficial with short stalk, blue-green; asci cylindric-clavate, 60-70 x 4-5 jum, 8 spored; spores fusiform, with an oil drop