Lecanora stanislai, a new, sterile, usnic acid containing lichen species from Eurasia and North America

• DOI: 10.11646/phytotaxa.329.3.1
• Publication Date: 2017-11-30T23:50:04Z
• Authors: BEATA GUZOW-KRZEM...; ANNA ŁUBEK; JIŘÍ MALÍČEK; TOR TØNSBERG; MAGDALENA OSET; MARTIN KUKWA
• Keywords: Thallus; Usnic acid

Lecanora stainislai is characterized by a very thin sorediate thallus, forming more or less continuous layer of soredia and the production usnic acid zeorin. It usually grows on smooth bark trees in forests known from Czech Republic, Norway, Poland, Russia, Ukraine western North America (Canada, USA). chemically similar to L. compallens, which however has an episubstratal thallus non-sorediate parts often delimited soralia. They have also different phylogenetic positions within symmicta group. Moreover, based molecular marker analysis position expallens resolved this group for first time.