Phylum: Charophyta   Family: Closteriaceae

Closterium intermedium J. Ralfs 1848

Similar to Cl. abruptum but that species has finer striae and is narrower, almost without overlap. Striae in this species usually falls between 5-8 per 10 µm.
Cell dimensions: L: 220-330 µm; B: 19.5-29 µm; Ap: 6-11 µm; L/B: 8-17.
Fairly common in moorland pools, Sphagnum bogs and vegetated loch-margins.

References: 
Brook, A.J. & Williamson, D.B. (2010). A Monograph on some British Desmids.
Coesel, P.F.M. & Meesters, K.J. (2023 second edition). Desmids of the Lowlands.
Van Westen, M. (2024). Sieralgen in Drenthe.