Pseudocyphellaria holarctica McCune, Lücking & B. Moncada
Lobariaceae
Dr. Sean Haughian (2018-05-17T22:15:34Z)
According to recent work by Lucking et al. (2017 - The Bryologist), specimens that were formerly designated P. perpetua (more recently P. hawaiiensis) in boreal and temperate regions of eastern North America and parts of Russia are a distinct species, Pseudocyphellaria holarctica McCune, Lucking & Moncada. This new designation has already been incorporated into Esslinger's North American lichen Checklist, version 22.