Håkan Kvarnström Photography - Pandorina and Eudorina are two fresh water species of green algae that bloom during the summer. Seems to enjoy fairly warm waters and can sometimes occur in huge
Image - Pandorina morum | BioLib.cz
The “Green Blackberry” – a profile of Pandorina morum (and very briefly, other Eudorina) – Algal Ramblings