Cryptic speciation revealed in Scandinavian Racomitrium lanuginosum (Hedw.) Brid. (Grimmiaceae)

ABSTRACTIntroduction. Within Racomitrium Sect. Racomitrium, several species are distinguished in the Southern Hemisphere, but only the variable R. lanuginosum (Hedw.) Brid. exists in the north. Pla...