Column, thin-layer and high-performance liquid chromatography revealed the presence of the following carotenoids in the thalli of 12 species (27 specimens) of Peltigera from various eco logical niches: a-, /3-carotene, /3-cryptoxanthin, lutein, zeaxanthin, diatoxanthin, antheraxanthin, echinenone, 3'-, 4'-hydroxyechinenone, canthaxanthin, /3-doradexanthin, neoxanthin, rubixanthin, as- taxanthin, violaxanthin and capsochrome. All species with cyanobacteria as their photobiont, irre spective of the site from which they were collected, contained /3-carotene and zeaxanthin, and those with green-algae as their phycobiont contained /3-carotene and lutein. lichens, Peltigera genus, phycobionts, photobionts, carotenoids.