In Phaius subtrilobus a striking change in ovary colouration can be observed. The ovary of a non-pollinated Phaius subtrilobus flower is pure white (see picture above). If the flower is not pollinated, the flower will decay without any change of its ovary colour.
Pollination and subsequent fertilization will result in a remarkable change of Phaius subtrilobus ovary colour. With time more and more chlorophyll is synthesized in the seedpod (ovary) of a fertilized Phaius subtrilobus flower. What is the use of chlorophyll synthesis in ripening seedpods of Phaius subtrilobus? Do you have an idea?
Macodes Jewel Orchids / Juwelorchideen by Carlise and Eike Jauch 