Phylum: Charophyta   Family: Mesotaeniaceae

Netrium oblongum (A. de Bary) J. Lütkemüller 1902

First described and illustrated by De Bary (1858: 73, pl. 7G: 1-2) as Penium oblongum. It was later moved to its current genus by Lütkemüller (1902: 407).
Cell dimensions: L: 100-160 µm; B: 25-40 µm; L/B: 3-4.3.
A rare taxon found in moorland pools and abandoned peat-cutting.

References: 
Coesel, P.F.M. & Meesters, K.J. (2023 second edition). Desmids of the Lowlands.
De Bary, A. (1858). Untersuchungen über die Familie der Conjugaten (Zygnemeen und Desmidieen) Ein Beitrag zur physiologischen und beschreibenden Botanik.
Lütkemüller, J. (1902). Die Zellmembran der Desmidaceen.