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

Table 2. Occurrence of the fungi concerning the host plants or other substrata. Acer sp. x Alnus glutinosa x x x x x x Arctium tomentosum Corylus avellana Fagus silvatica x x x x Fraxinus sp. x Libanotis montana x Melampyrum sp. x Poa nemoralis x Prunus domestica Quercus sp. x x x x x x Robinia pseudacacia x x x x Salix sp. x Urtica dioica x Umbelliferae dead wood x dead leaf dung x Hysteriales - Hysteriaceae Gloniopsis curvata (Fries) Sacc. Asci clavate, 80-110 x 14-16 jum, 8-spored; spores hyalin with 3-4 transversal and 1 longitudinal septa, 17-20 x 7-8 jam. - Found on decorticated wood, Királyrét in mtn. Büdöstó-hegy, 8.IX. 1981. SUMMARY In addition to the aim of detecting fungi on various substrata, it was intended to look for relationships between substrata decayed to different degree and the groups of fungi inhabiting on them. Approximately three stages of decay of twigs and branches were found to be characterised on the one hand, by different degrees of decomposition, on the other hand by different groups of the fungi inhabiting these substrata. 1) In the early stages of decomposition characterised by nearly intact tissues and bark, mainly Ascomycetes with closed fruitbody as well as Sphaeropsidales could be found; 2) The substrata were characterised in the second stage by rather loose tissues and incomplete bark. Fungi associated with this stage were Ascomycetes with fruitbody of apothecium as well as increasing number of Moniliales; 3) In the third stage the twigs usually had porous tissues and were not or hardly covered by bark. Generally in this stage appeared Myxomycètes, as well as most various groups of Hyphomycetes and scanty appearance of Ascomycetous fungi were observed.