To the left: The morphological structure of the cell with hat, stem and rhizoid with nucleus. To the right:
Attempt of regeneration (see text for details).
The influence of the nucleus on the hat morphology of Acetabularia. Reconstruction experiment between Acetabularia mediterranea and Acetabularia crenulata.
Influence of the plasma on the gamete formation (according to J. HÄMMERLING, 1953)
