Lichen diversity in the Natura 2000 conservation area Raabklamm (Austria, Styria). – In the nature conservation area „Raabklamm“ in Styria at a number of temporary plots with special emphasis on sites that could be assigned to habitat types listed in annex I to the European Union “Council directive on the conservation of natural habitats and of wild fauna and flora” the local diversity of lichenized fungi and their lichenicolous fungi has been investigated. A total of 266 lichenized taxa and 41 taxa of lichenicolous fungi have been identified so far, including 57 species listed in the “Red List of End angered Lichens in Austria”. Of special interest are the low elevation rocky sites partly representing “habitat types with conservation priority”. Field work yielded also the presence of further habitat types listed in Annex 1 to the EU directive but not mentioned in the provincial legal ordinance. Lichenochora aipoliae is reported from the European countries Austria, Finland and Sweden, furthermore from Asia (Afghanistan) and North America (Canada). Arthonia coronata, Tremella candelariellae and Tubeufia heterodermiae are reported as new to Austria. At two localities populations of Placocarpus schaererei thought to be extinct in Styria could be found again. Merismatium peregrinum represents a new record for Styria.