Gender dimorphism in Cheesemania wallii (Brassicaceae)

Abstract

Cheesemania wallii at Eyre Creek, Southland, exhibits gender dimorphism. Female plants produce no fertile pollen, but, as it seems likely that males can produce seeds, C. wallii is probably gynodioecious. Flowers on male plants are larger than flowers on female plants. This is the third report of gender dimorphism in Brassicaceae, and the second such report from New Zealand.

Keywords:

• Brassicaceae
• Cheesemania wallii
• dimorphism
• gynodioecy
• breeding system
• New Zealand