Sporoderm homologies and morphogenesis of Echinops sphaerocephala (Compositae).- The fundamental structure of the pollen exine.- The microtubular cytoskeleton during pollen development.- The pollen surface in wind-pollination with emphasis on the Compositae.- Harmomegathic characters of Pteridophyta spores and Spermatophyta pollen.- Fern spores: evolutionary levels and ecological differentiation.- The genus Acacia (Leguminosae, Mimosoideae): its affinities as borne out by its pollen characters.- Taxonomic and evolutionary significance of pollen morphology in the Apocynaceae.- Pollen morphology of the Cordioideae (Boraginaceae): Auxemina, Cordia, and Patagonula.Springer Book Archives