Grimmia arcuatifolia and G. leibergii (Musci, Grimmiaceae), two neglected species from Northwestern North America

Abstract

Grimmia arcuatifolia and G. leibergii are recognized as distinct species. Each is known from restricted áreas in northwestern North America. Grimmia alternuata and G. procera are synonyms of G. arcuatifolia

Keywords

• bryophytes
• taxonomy
• nomenclature
• distribution
• typification