Cycad cones. Cones of the Eastern Cape giant cycad or bread tree (Encephalartos altensteinii),family Zamiaceae. The giant cycad is widely distributed in coastal regions of the Eastern Cape (South Africa ). Present day cycads are survivors of a group dating back 300 million years. Most families died out during the Cretaceous period,80 million years ago. Cycads are of great evolutionary interest due to their reproductive system,considered to be the forerunner of flowering plants. The cones are the reproductive structures and can be male or female,producing seeds to form new plants. Photographed in Cape Town,South Africa | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Overy, Dr. Neil |
Taille de l’image : | 5616 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |