Reference: The Freshwater Algal Flora of the British Isles 2nd edn (2011), p. 544, pl. 133F (p. 536)Image: Image Owner: L.R. JohnsonPhotomicrography: Photomicrography : brightfieldDimension: Cells about 4-6 µm wideTaxonomic name: Pseudendoclonium prostratum var. radiatum