Phylum: Charophyta   Family: Desmidiaceae

Haplotaenium latius (F.A.C. Kouwets) P.F.M. Coesel & K.J. Meesters 2023

This species is similar to H. rectum but generally larger and attenuates to the apices a little more markedly and has a hardly discernible, if at all, basal inflation.
Single cell dimensions: L: 175 µm; B: 11 µm; L/B: 16.
Just one Outer Hebridean record as of 2025. Possible confused with other members of the genus and misidentified. Found in moorland pools and bogs.

References: 
Coesel, P.F.M. & Meesters, K.J. (2023 second edition). Desmids of the Lowlands.
Van Westen, M.C. (2024). Sieralgen in Drenthe.