The lichen genus Ochrolechia in the Baltic countries

Nine Ochrolechia species have been identified in a revision of the genus in the Baltic countries: O. alboflavescens, O. androgyna, O. arborea, O. bahusiensis, O. frigida, O. microstictoides, O. pallescens, O. szatalaensis and O. turneri. O. bahusiensis is reported for the first time for Estonia and Lithuania, the occurrence of O. tartarea in the Baltic countries is doubtful and O. subviridis should be excluded from the Estonian checklist. An identification key for all listed taxa is provided.

Contribution to the knowledge of some poorly known lichens in Poland. I. The genus Absconditella

Data on the poorly known lichen genus Absconditella in Poland are presented. A. pauxilla is reported as new to the country. New collections of the rare in Central Europe A. delutula and A. sphagnorum are provided. Additionally, new records of the very much overlooked A. lignicola are presented from many regions of Poland. Taxonomic remarks, known world distribution and habitat preferences for the species are included.

Contribution to the knowledge of some poorly known lichens in Poland. II. The genus Psilolechia

Psilolechia leprosa is reported as new to Poland and Sudetes Mts. It was found on metal enriched melaphyre rocks. The distribution of P. clavulifera is reviewed and the new records show it has been very much undercollected. The chemistry of P. lucida in Poland was investigated and it was found to produce more substances of unknown structure, than previously reported.

Contribution to the knowledge of some poorly known lichens in Poland. III. Trapelia corticola and the genus Vezdaea

New data on four Vezdaea species and Trapelia corticola (lichenized Ascomycota, Lecanoromycetes) are presented for Poland. V. acicularis is reported as new to the country and records of V. retigera are newly published. Further collections of the rare V. stipitata and relatively common V. aestivalis are presented. New localities of Trapelia corticola suggest that the species is locally common in the mountains. Notes on the taxonomy, world distribution and habitat preferences for all species are included. Additionally, Vezdaea aestivalis is reported for the first time for Romania.

Additions to the biota of lichenicolous and lichenized fungi of Poland

Two lichenicolous fungi, Ceratobasidium bulbillifaciens and Sclerococcum phaeophysciae, and one lichen, Xanthoria aureola, are reported for the first time from Poland. For each species, the descriptions with notes on similar species, habitat preferences and general distribution are provided

The lichen family Parmeliaceae in Poland. II. The genus Cetrelia

In a study of the genus Cetrelia in Poland, four taxa have been identified, two of which, C. chicitae and C. monachorum, are reported for the first time from the country. All taxa differ in chemistry and subtle morphological characters. Cetrelia monachorum is the commonest member of the genus in Poland (237 records), whereas C. chicitae is known only from 6 records. All taxa are endangered, and three, C. cetrarioides, C. chicitae and C. olivetorum, appear to be critically so, thus deserving the category CR; although C. monachorum is the most frequent, it is not common and should be treated as endangered (EN). The distribution of all taxa, their habitat requirements, as well as morphology and secondary chemistry, are discussed

The lichen genus Pertusaria in Poland II. Secondary chemistry of P. flavida

This paper presents a study on a chemical variation of Pertusaria flavida in Poland. Six chemotypes were determined in the studied material, of which chemotypes IV, V and VI were never reported before. All of them produce thiophaninic acid as the diagnostic metabolite for the species and this is the only major substance in chemotype I. Chemotype II contains in addition also 2’-O-methylperlatolic acid (± confluentic acid), whereas chemotype III stictic acid complex (± minor or trace amounts of norstictic acid). Chemotype IV is characterized by the presence of 2’-O-methylperlatolic acid and stictic acid complex (± norstictic acid in minor to trace amounts). Chemotype V produce norstictic acid as a major additional substance and chemotype VI contains 2’-O-methylperlatolic acid together with norstictic acid. Chemotype II was the most common chemotype (c.75% of specimens) in studied material. Distribution maps are presented for all chemotypes.

The lichen biota of the Drawieński National Park (NW Poland, Western Pomerania)

The whole known lichen biota of the Drawieński National Park is presented. In total 290 species (262 lichenized, 25 lichenicolous and 3 lichen-related, saprotrophic fungi) are listed. Trichonectria anisospora and Milospium lacoizquetae are reported as new to Poland. Lecanora stenotropa and Phaeophyscia pusilloides are reported for the first time from Polish lowlands. The most lichenologically interesting and richest habitat complexes are the river valleys with their beech slope forests, their alluvial forests and their fast running rivers. Further habitats of high nature conservation value are roadside trees and pine forests, which inhabit a rich lichen biota as well.

The lichen family Parmeliaceae in Poland. III. Parmelia serrana, new to Poland

Parmelia serrana A. Crespo, M.C. Molina & D. Hawksw. is reported here for the first time from Poland. The species has been recorded from more than 20 localities and exclusively on the bark of trees. Its general distribution, habitat requirements, morphology, secondary chemistry are provided and the differences between this species and similar taxa, especially P. saxatilis and P. ernstiae, are discussed

Rinodina griseosoralifera, a lichen species new to the Western Carpathians

Rinodina griseosoralifera is reported for the first time from Poland and the Western Carpathians. It is known there from the Gorce Mts, only locality up to now. Details of the chemistry, morphology and general distribution are provided and similar taxa are discussed