New and interesting species of lichens from xerothermic habitats in NW Poland

Anetta Wieczorek,Andrzej Łysko,Jurga Motiejŭnaite

doi:10.5586/am.1097

Anetta Wieczorek, Andrzej Łysko + Show 1 more

Open Access

https://doi.org/10.5586/am.1097

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Abstract

This paper presents data on the occurrence of lichens in xerothermic grasslands, representing a great mycological peculiarity of the NW part of Pomerania, Poland. The 12 examined specimens of six species originated from fieldwork carried out in 2011–2014 in the nature reserves Brodogóry, Stary Przylep, Bielinek, Wrzosowiska Cedyńskie, Prof. Adam Wodziczko Nature Reserve in the Wolin National Park, and an old chalk excavation site on Wolin Island. Within the study sites, four lichen species were recorded as a new to Western Pomerania: Agonimia gelatinosa, Collema cristatum, Dermatocarpon luridum, and Leptogium subtile. The other two species, Collema auriforme and C. flaccidum, are rarely observed in the studied region.

Highlights

The great peculiarity of NW Pomerania are a xerothermic grasslands
This paper presents data on the occurrence of lichens in xerothermic grasslands, representing a great mycological peculiarity of the NW part of Pomerania, Poland
Xerothermic epigeic lichens were found on calcareous soil, humus, and decaying remains of plants as well as on rock-waste

Summary

Introduction

The great peculiarity of NW Pomerania are a xerothermic grasslands They develop in specific climatic conditions only, in the areas where high soil and nearsurface air layer temperatures occur periodically. Soils overgrown with xerothermic plants must be reasonably fertile and rich in calcium carbonate Such conditions create favorable habitats for development of xerothermophilous and calciphilous lichens [1]. In Poland, calciphilous lichens usually occur in the mountains and uplands in limestone areas [2,3] In lowlands, this group of lichens is rarely recorded in natural ranges of xerothermic grasslands of the Lower Vistula, Odra, and Warta rivers [4,5,6,7]. This paper presents new localities of lichens that were recorded in xerothermic habitats in NW Poland, developed partly as a result of human activity

Material and methods

Discussion