The species pair Pseudocyphellaria pilosella-piloselloides (lichenized Ascomycota: Lobariaceae) is a single species

The foliose lichens Pseudocyphellaria pilosella and P. piloselloides are characterized by a cyanobacterial photobiont, a tomentose upper surface, a yellow medulla and yellow pseudocyphellae. The latter species has long been recognized as the sorediate counterpart of the former. The morphological, anatomical, chemical, and molecular analyses performed for this study support their treatment as a single species.