![](/img/custom/1.0/themes/Nolita/pixel.gif)
AH_Nostoc Freshwater Grapes Blue-green Algae Cyanobacteria_4145.jpg
![Shallow pool on an area of limestone pavement containing Freshwater Grapes {Nostoc sp.}, a blue-green algae or cyanobacteria. Gait Barrows National Nature Reserve, Lancashire, UK. September.](https://m.psecn.photoshelter.com/img-get/I0000XvR9TO4pmek/s/880/880/AH-Nostoc-Freshwater-Grapes-Blue-green-Algae-Cyanobacteria-4145.jpg)
![](/img/pixel.gif)
Shallow pool on an area of limestone pavement containing Freshwater Grapes {Nostoc sp.}, a blue-green algae or cyanobacteria. Gait Barrows National Nature Reserve, Lancashire, UK. September.
© Alex Hyde 5256x3504 / 11.5MB