Additions to the knowledge of the genus Cladonia (Cladoniaceae, lichenizedAscomycotina) in the alpine belt of the Pyrenees in Andorra

Field and laboratory studies of the lichen genus Cladonia in the alpine mea dows of Andorra (NE of Spain, Iberian Peninsula), yielded 24 taxa: 19 speci es, 3 subspecies and 2 unidentified taxa. Cladonia galindezii, earlier beli eved to be endemic to the Antarctic, is reported for the first time from th e Northern Hemisphere. C. asahinae, C. macroceras, and chemotypes IV of C. subcariosa and II of C. pyxidata are new reports for Europe. The lichen sub stances, reported for each taxon, and the altitudinal distribution are disc ussed.