Systematics and evolution of the Ranunculiflorae
A Biosystematic Study of the African and Madagascan Rubiacease-Anthospermeae (Plant Systematics and Evolution - Supplementa)
Molecular Systematics of Plants
Flowering Plants. Eudicots: Asterales (The Families and Genera of Vascular Plants, 8)
The Gentianaceae - Volume 1: Characterization and Ecology
Angiosperm Pollen and Ovules
A Monograph of the Fontinalaceae
Floral Biology Studies on Floral Evolution in Animal-pollinated Plants
Caryophyllales: Evolution and Systematics
Plant Diversity and Evolution Genotypic and Phenotypic Variation in Higher Plants