Abstract
The lichen genus <em>Cladonia</em> comprises several similar species which have hardly been recognized in Western Poland so far. We used thin layer chromatography (TLC) as a simple technique to determine diagnostic lichen substances in morphologically similar <em>Cladonia</em> species. During field studies in Sandr Nowotomyski (western Nizina Wielkopolska Lowland), ten interesting records of <em>Cladonia</em> species were made. <em>Cladonia novochlorophaea</em> is reported for the first time from this region. Our records supplement the knowledge about the distribution of <em>Cladonia</em> species both in the investigated region and in Poland. All the records are compared with existing literature data from regional floristic inventories and distribution maps from Poland.
Highlights
The lichen genus Cladonia Hill ex P
The importance of se condary lichen metabolites to the taxonomy and species discrimination within the genus Cladonia has been confirmed in a first molecular approach by Stenroos et al (2002)
Though Cladonia species can be found in many lichenological reports from different regions of Poland (Fałtynowicz 2003 and literature cited therein), the information about the species recognizable only by secondary substances is rather
Summary
The lichen genus Cladonia Hill ex P. Comm.), and every new record from this region is valuable In this region, attention was paid only to epigeic Cladonia species in vegetation surveys of dry grasslands (e.g., Celiński, Balcerkiewicz 1973) and coniferous forests (e.g., Tobolewska, Wronówna 1955; Długosz 1961; Tobolewski 1962, 1963; Zarabska 2008a). Recent lichen inventories carried out in Sandr Nowotomyski in the western part of Wielkopolska lowland in the years 2007 and 2008 revealed several stands of rare and noteworthy Cladonia species. (Żukiel 1967; Medwecka-Kornaś 1972; Bujakiewicz, Lisiewska 2003) These habitats favor the occurrence of epigeic lichen vegetation
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