R. Türk 2006: Die Flechtenflora in Wein ― Veränderungen im Zeitraum 1853 bis 2004. The lichen flora in Vienna: changes from 1853 to 2004. - Verhandlungen der Zoologisch-Botanischen Gesellschaft in Österreich143: 113-118. [RLL List # 212 / Rec.# 30408] Keywords: VIENNA/ AUSTRIA/ CHECKLIST/ TERRICOLOUS/ AIR POLLUTION
Abstract: ["Terricolous lichens have disappeared almost entirely, whereas the diversity and abundance of saxicolous and epiphytic species has developed due to the climatic conditions, the level of air pollution and the presence of suitable substrata." In German with an English abstract.]