The evolution of floral biology in basal angiosperms.

@article{Endress2010TheEO,
  title={The evolution of floral biology in basal angiosperms.},
  author={Peter K. Endress},
  journal={Philosophical transactions of the Royal Society of London. Series B, Biological sciences},
  year={2010},
  volume={365 1539},
  pages={411-21}
}
In basal angiosperms (including ANITA grade, magnoliids, Choranthaceae, Ceratophyllaceae) almost all bisexual flowers are dichogamous (with male and female functions more or less separated in time), and nearly 100 per cent of those are protogynous (with female function before male function). Movements of floral parts and differential early abscission of stamens in the male phase are variously associated with protogyny. Evolution of synchronous dichogamy based on the day/night rhythm and… CONTINUE READING