The algae. Algae. 26 THE ALGAE being the normal number in the common species P. morum. In the species the cells are so compacted that they are flattened by mutual pressure.
The “Green Blackberry” – a profile of Pandorina morum (and very briefly, other Eudorina) – Algal Ramblings
Pandorina morum (O.F.Müller) Bory :: AlgaeBase
Pandorina morum - YouTube
Pandorina morum
Pandorina morum (–), Living | Carolina Biological Supply