Species delimitation in Lejeunea (Lejeuneaceae, Marchantiophyta) through molecular phylogeny, morphology and biogeography, and a discovery of  a new species from Fiji

Key Points

• Molecular phylogeny reveals distinct lineage dividing Lejeunea species from Fiji and surrounding areas, highlighting genetic diversity.
• A new species was identified, contributing to the overall understanding of Lejeunea biodiversity and evolution over time.
• The study utilizes molecular techniques alongside morphological traits to clarify species identification within Lejeunea.
• Implications of biogeographical patterns emphasize the need for conservation efforts in the unique ecosystems of Fiji.