Morphology and classification of the Marchantiophyta / Barbara Crandall-Stotler, Raymond E. Stotler, and David G. Long -- Morphology, anatomy, and classification of the Bryophyta / Bernard Goffinet, ...
Many once-dominant land plants have either gone extinct or been reduced to an ecological role that represents just a shadow of their past importance 1,2. Under the sequential replacement hypothesis ...