Magdalena Oset

Contribution to the Lithuanian flora of lichens and allied fungi. IV.

Abstract Four species of lichens and two species of lichenicolous fungi were reported as new to Lithuania: Chaenotheca sphaerocephala, Endophragmiella franconica, Merismatium decolorans, Ochrolechia androgyna, Pertusaria ophthalmiza, Stereocaulon taeniarum. Endophragmiella franconica was reported on a new host - Cladonia coniocraea. The teleomorph of Abrothallus suecicus was recorded for the first time in the country. Three species, Chaenotheca sphaerocephala, Endophragmiella franconica and Stereocaulon taeniarum, were recorded for the first time in the Baltic states. Microcalicium arenarium, previously known in Lithuania only from literature data, was confirmed with certainty for the first time. A revision of the Candelaria concolor complex revealed that only C. pacifica is known in Lithuania. Santrauka Straipsnyje pateikti duomenys apie keturių rūšių kerpes ir dviejų rūšių lichenofilinius grybus, kurių iki šiol Lietuvoje nebuvo aptikta. Dvi kerpių rūšys - Chaenotheca sphaerocephala ir Stereocaulon taeniarum bei lichenofilinis grybas Endophragmiella franconica aptikti pirmą kartą Baltijos šalyse. Merismatium decolorans, Ochrolechia androgyna ir Pertusaria ophthalmiza aptikti pirmą kartą Lietuvoje, pirmą kartą šalyje rasta ir Abrothallus suecicus teleomorfa. Lichenofilinis grybas Endophragmiella franconica pirmą kartą aptiktas ant naujo šeimininko - Cladonia coniocraea. Rastas iki šiol Lietuvoje tik iš istorinių literatūros šaltinių žinomas Microcalicium arenarium. Atlikus kerpių Candelaria concolor komplekso reviziją nustatyta, kad Lietuvoje kol kas žinoma tik viena komplekso rūšis - Candelariella pacifica.

The Lichen Family Parmeliaceae in Poland. Xanthoparmelia Species Containing Usnic Acid

Abstract: Kanigowski, P., Flakus, A., Oset, M., Kowalewska, A., Rykaczewki, M., & Kukwa, M. 2016. The lichen family Parmeliaceae in Poland. Xanthoparmelia species containing usnic acid. — Herzogia 29: 108–119. In a study of the Xanthoparmelia species containing usnic acid in Poland, six taxa have been recognized. Xanthoparmelia plittii is new to Poland. Some of the material is referred to as X. aff. cumberlandia. Xanthoparmelia conspersa is the most common species of the group in Poland (c. 67% of all records). Xanthoparmelia angustiphylla is widespread, but less common (c. 20% of all records). The remaining Xanthoparmelia taxa in Poland, i.e. X. aff. cumberlandia, X. mougeotii, X. plittii and X. stenophylla, are rare or very rare in the country. The distribution and threat status of all taxa, their habitat requirements, morphology and secondary chemistry are discussed and notes on similar taxa are made.