This work aimed to present the diversity of fungal species in the Poznań- Radojewo park. It was characterized based on literature data, unpublished master’s theses, the authors’ data, as well as data collected during two mycological trips organized by the Mycological Section of the Polish Botanical Society. Between 1980 and 2017, as many as 333 species of macromycetes have been found within the park in Poznań-Radojewo (among them 19% are rare and endangered), including eight protected species (<em>Mitrophora </em><em>semilibera</em>, <em>Morchella esculenta  </em>(var. <em>esculenta </em>and var. <em>umbrina</em>), <em>Geastrum corollinum</em>, <em>G. fornicatum</em>, <em>Hericium coralloides, </em>and <em>Myriostoma coliforme</em>), as well as two species new to the Polish mycobiota: <em>Psathyrella bipellis </em>and <em>P. larga</em>. The park in Poznań-Radojewo is very important for maintaining a high species diversity of fungi within the city of Poznań. During revitalization works, it is of paramount importance to take the needs of rare, threatened, and protected species under consideration and to preserve the natural character of plant communities. It is also vital to ensure the presence of coarse woody debris at different decomposition phases, which serves as an important substratum type for rare fungi.

Abstract. This preliminary study examined the arbuscular mycorrhizal (AM) status of native plant species in the Molinia meadows of Folusz in the Kujawy region, Poland. Root samples from ten plant species characteristic of Molinia meadows (Betonica officinalis, Dianthus superbus, Galium boreale, Inula salicina, Ostericum palustre, Sanguisorba officinalis, Selinum carvifolia, Serratula tinctoria, Silaum silaus, and Succisa pratensis) were collected in August 2014. Root colonization by AM fungi was considered an indicator of symbiosis development. AM was found in all plant species examined. The frequency of mycorrhizal structures ranged between 68% and 99%. The intensity of mycorrhizal colonization in roots varied with the plant species, ranging between 3.9% (O. palustre) and 40.1% (B. officinalis). To our knowledge, this is the first study to examine the mycorrhizal status of three species: D. superbus, O. palustre, S. carvifolia. Because AM colonization depends on plant genotype and environmental factors, further studies should examine seasonal variability in plant root colonization and the compositions of AM fungal communities, which may serve as indicators of site conditions.