A simple looking sample from flowing water in a usually (for most of the year) dry drainage ditch adjacent to the road. It was anything but simple under the microscope - filamentous green algae, filamentous diatoms, branched green algae, single cell diatoms and motile cells not photographed.
This is more a sighting of an algae community than of any one species, I'm not sure if CNM is interested in this sort of thing or how it should be reported