Annals of the Missouri Botanical Garden · 1997 · 60 citations · 0 references
Life SciencesBotanyPlant SciencesPlant AnatomyPlant SystematicsPlant TaxonomyFern SystematicsFloral MorphologyGymnosperm SystematicsPteridophyte SystematicsVascular DevelopmentVascular TissueFossil PteridophytesGymnosperm EvolutionPteridophyte AnatomyPteridophyte EvolutionPteridophyte FlorasPteridophyte FossilsPteridosperm Floras