BioStor
 | The Bases of Angiosperm Phylogeny: Cytology Peter H Raven (1975) Annals of the Missouri Botanical Garden 62: 724-764 |
 | The Bases of Angiosperm Phylogeny: Vegetative Morphology Leo J Hickey and Jack A Wolfe (1975) Annals of the Missouri Botanical Garden 62: 538-589 |
 | An Ordinal Classification for the Families of Flowering Plants (1998) Annals of the Missouri Botanical Garden 85: 531-553 |
 | A Combined Cladistic Analysis of Angiosperms Using rbcL and Non-Molecular Data Sets Owi I Nandi, Mark W Chase and Peter K Endress (1998) Annals of the Missouri Botanical Garden 85(1): 137-214 |