Contribution to Knowledge of Mycobiota of the Wielkopolski National Park (W Poland), Part 2

Wielkopolski National Park is a protected area located in central Wielkopolska, near Poznań City, and is an important refuge to numerous valuable species of plants, fungi, and animals. Through 2019, the project to recognize and catalog the macromycetes of this Park was continued. The current paper presents the results of these studies in the form of an annotated list of the recorded species. One hundred and eighty-nine taxa new for Wielkopolski National Park have been identified. Among these, nine are new to Poland (<em>Acanthophysellum </em><em>lividocoeruleum</em>, <em>Agaricus moellerianus</em>, <em>Callistosporium luteo-olivaceum</em>, <em>Entoloma terreum</em>, <em>Flammulina populicola</em>, <em>Leucoagaricus sublittoralis</em>, <em>Marasmius anomalus </em>var. <em>microsporus</em>, <em>Phaeohelotium rufescens</em>, and <em>Tulasnella danica</em>). The current number of fungal taxa found in this park is 1,122.

Contribution to the Knowledge of Mycobiota of the Wielkopolski National Park (W Poland)

The Wielkopolski National Park is located in western Poland, near Poznań City. Its unique postglacial landforms are covered with various (semi)natural and anthropogenic ecosystems. The mycobiota of this Park has been studied for 90 years; however, current state knowledge is still insufficient. In 2018, a few-year- long project on the chorology, richness, and diversity of fungal biota of this area was started. In the first year, 312 taxa of macromycetes were found. Among them, 140 taxa were new for the biota of the Wielkopolski National Park. Five species (<em>Botryobasidium robustius</em>, <em>Hebeloma subtortum</em>, <em>Leccinum brunneogriseolum</em>, <em>Pachyella violaceonigra</em>, and <em>Sistotrema athelioides</em>) were new for Poland, and 26 taxa were new for the Wielkopolska region.

Serpula himantioides (Fr.) Bond. ex Parm. in Poland

<i>Serpula himantioides</i> recognized as an extinct species in Poland, has been recently found in the Wielkopolski National Park. Synonyms and iconogarphy are given and the present distribution and ecology is discussed.

Ecological groups of macromycetes in the wet alderwood of the Wielkopolski National Park

During 3-year mycosociological studies performed in 4 permanent plots in the <i>Ribo nigri-Alnetum</i> Sol.- Górn., 1975 association a great diversity of macromycetes has been recorded and discussed in different ecological groups as regards substratum.

Evaluation of Thermal Conditions in Jeziory (The Wielkopolski National Park)

The purpose of this paper is to present selected methods of evaluation of thermal conditions in the Wielkopolski National Park and their initial characterization. The analysis was based on data from the automatic meteorological station in Jeziory measured during the period 2001-2010. The calendar of thermal classes graphically shows the variation in thermal conditions for each month and deviation from the standard adopted for the period concerned (Table 2). A good complement to the calendar seems the graphs of mean daily air temperature for months above and below the standards that enable their connection with the peculiarities of weather occurring in the area of Central Europe (Fig. 1). In addition to complete characterization of thermal conditions, specific number of days according to the average daily temperature ranges (Tavr): tavr. < 10°C, tavr. 10.1-15.0°C, tavr. 15.1-20.0°C, tavr. 20.1-25.0°C, tavr. 25.1-30.0°C and interdiurnal changes of average daily temperature (ΔTavr): Δtavr. < 2°C, Δtavr. 2.1-4.0°C, Δtavr. 4.1-6.0°C, Δtavr. >6.0°C were calculated (Table 3, 4). They were the basis for separating the year into thermal seasons (Table 5, Fig. 2). Ward’s method was used giving the best results in the case while both Tavr and ΔTavr were taken into consideration. The results obtained allow concluding that different methods of evaluation of thermal conditions applied separately do not give a full picture of thermal conditions of the area. Only a combination of results obtained using the Ward’s and calendar methods can give a complete thermal conditions characterization.