1983 · 36 citations · 0 references
Life SciencesBotanyPlant SciencesInsect SystematicsPlant SystematicsSystematicsBryophyte PhylogenyEvolutionary RelationshipsHornwort DiversityPhylogenetic SystematicsPlant PhylogenyTaxonomic KeysBiogeographic SystematicsHornwort BiogeographyHornwort FloristicsHornwort Identification KeysPaleobotanical Keys