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Some Characteristics of the Macromycete Flora of the Quercus robur-forest in the Nature Preserve of Prašnik

Milutin Jelić ; Hrvatska
Milica Tortić ; Hrvatska


Puni tekst: hrvatski pdf 705 Kb

str. 227-235

preuzimanja: 383

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Sažetak

Along the river Sava there still exist large tracts of oak forests (Quercus robur), although old stands are very few now. In the forest of Prašnik near Okučani (Fig. 1) there is one of the oldest stands, consisting of 250—350 year old trees and covering 52,49 ha. This part of the forest is treated as a nature preserve.
Mycological investigations were carried out in both the old and the younger parts in July and October 1971, and in October 1972. Although they are not complete, some conclusions could be reached about the main characteristics of the macromycete flora.
In all, 61 species have been identified so far, which are presented in the Table. Most of them (83,6°/o) belong to lignicolous fungi. The reason is most probably the very high percentage of moisture which offers optimal conditions for species growing on wood, whilst inhibiting the development on other substrates (soil, litter).
The most frequent species were those which are common in oak and other broadleaved forests, such as Stereum hirsutum, Trametes gibbosa, Trametes versicolor, Bjerkandera adusta, Hypoxylon fragiforme, Xylosphaera hypoxylon, Schizophyllum commune, Panellus stypticus, Mucena galopoda, Laccaria laccata, Coprinus dissemirwtus, Auricularia mesenterica. On the other hand, some fungi which fairly often attack old living oaks were established only in a few instances; they are Fistulina hepatica, Phellinus robustus, Ganoderma applanatum, Laetiporus sulphureus, Fomes fomentarius.
The following species should be pointed out:
Peziza varia (Hedw.) Fr. It was found twice on the same oak log (October 1971 and October 1972). Both times a relatively large number of apothecia was developed; their diameter was up to 10 cm. This species is easily recognisable, as its flesh is conspicuously stratified in five layers.
Schizopora phellinoides (Pil.) Doman. has only recently been (Domanski 1969) recognized as an independent species, and its distribution in Europe is still insufficiently known. In addition to Prašnik, it was found in Yugoslavia only in two similar forests not far from Zagreb (Čiička Poljana and Krakovski Gozd). Very probably it is not infrequent.
Ganoderma adspersum (S. Schulz.) Donk. The distribution of this species in Yugoslavia was published elsewhere (Tortić 1971); Prašnik is therefore a new locality.
Pleurotus calyptratus (Lindbl. ap. Fr.) Sacc. was collected in Yugoslavia for the first time by S. and M. Tortić on 12 July, 1971, from the branches of a felled Populus. This is a very rare species, which is known from Sweden, Austria and several localities in Czechoslovakia. Up to now it has been found exclusively on Populus wood; this has been confirmed by our find too. The largest specimen already lacked the characteristic veil, which was, however, well developed in smaller ones. The specimens are preserved in ZA.
Lycogala jlavojuscum Rost, is, according to the literature, a widely spread, but rare species. It is one of the largest myxomycetes; the diameter of its aethalia, growing in October 1971 together with Peziza varia on the same oak log, was 4—8 cm.

Ključne riječi

Hrčak ID:

157279

URI

https://hrcak.srce.hr/157279

Datum izdavanja:

31.12.1973.

Podaci na drugim jezicima: hrvatski

Posjeta: 894 *