1. Is there a Podostemum type of embryo sac in the genus Farmeria?;Arekal;Caryologia,1975
2. Female gametophyte of Zeylanidium (Podostemaceae) — a clarification;Arekal;Phytomorphology,1977
3. Embryological questions: 11. Has the debated case of Podostemaceae been resolved?;Battaglia;Annali di Botanica,1987
4. Podostemaceae;Cook,2007
5. Podostemaceae and Tristichaceae;Cusset,1987