Saxicolous lichens from four localities in South West Greenland

Abstract

A total of 147 taxa of saxicolous lichens are reported from four localities in South West Greenland. Many lichens are of particular interest and are very rare in this part of Greenland. The following species are selected as typical examples: Gyalidea lecideopsis, Physcia magnussonii, Psorula rufonigra, Rhizocarpon eupetraeum, R. ferax, Rinodina arnoldii, R. endophragmia, R. milvina and R. parasitica. A new combination is made, viz. Coppinsiella alcarum (Poelt) E. S. Hansen et S. Y. Kondr. The type of preferred rocky substrate is noted for all listed lichens. The substrate specificity of the lichens is shortly discussed and outlined.