Flowering plants : taxonomy and phylogeny

Development of Classificatory Systems Classificatory Systems - A Comparative Study Nomenclature Evolutionary Trends in Angiospermous Flowers Dicotylendons - Subclass Archichalmydeae, Various Orders of This Subclass, Subclass Sympetalae, Various Orders of This Subclass Monocotylendons - Various Orders of Monocotyledons.