Poznámky k sorediosním druhům rodu Porpidia s rezavě zbarvenou stélkou z České republiky

The sorediate Porpidia species with orange thallus from the Czech Republic are reviewed. P. melinodes is recorded for the first time in the country. P. soredizodes and P. tuberculosa, which occasionally develop an orange/rusty thallus, are also included in the text.