Maria von Balthazar, Kaj Raunsgaard Pedersen, and Else Marie Friis. 2005. Teixeiraea lusitanica , a new fossil flower from the Early Cretaceous of Portugal with affinities to the Ranunculales. Plant Systematics and Evolution 255(102): 55-75. abstract (pdf available from SpringerLink at this link)

Maria von Balthazar, William S. Alverson, Jurg Schonenberger, and David A. Baum. 2004. Comparative floral development and androecium structure in Malvoideae (Malvaceae s.l.). International Journal of Plant Sciences 165(4): 445–473. abstract | full text article | article in pdf format

Jurg Schönenberger, Maria von Balthazar, and Merran L. Matthews. 2003. Flowers – diversity, development and evolution: introduction. International Journal of Plant Sciences 164(5 Supplement): S197-S199. full text article | article in pdf format

Maria von Balthazar, G.E. Schatz, and Peter K. Endress. 2003. Female flowers and inflorescences of Didymelaceae. Plant Systematics and Evolution 237(3-4): 199-208. abstract (pdf available from this link)

Maria von Balthazar, and Peter K. Endress. 2002. Reproductive structures and systematics of Buxaceae. Botanical Journal of the Linnean Society 140(3): 193-228. abstract | full text article | article in pdf format

Maria von Balthazar, and Peter K. Endress. 2002 Development of inflorescences and flowers in Buxaceae and the problem of perianth interpretation. International Journal of Plant Sciences 163(6): 847-876. abstract | full text article | article in pdf format

Maria von Balthazar, Peter K. Endress, and Yin-Long Qiu. 2000. Phylogenetic relationships of Buxaceae based on nuclear ITS and plastid ndhF sequences. International Journal of Plant Sciences 161(5): 785-792. abstract | full text article | article in pdf format

Maria von Balthazar, and Peter K. Endress. 1999. Floral bract function, flowering process and breeding systems of Sarcandra and Chloranthus (Chloranthaceae). Plant Systematics and Evolution 218: 161-178. (not available online)