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Staurastrum pachyrhynchum cf. Desmid Species Outer Hebrides

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Phylum: Charophyta   Family: Desmidiaceae

Staurastrum pachyrhynchum cf. Nordstedt

This population is unusual in being entirely biradiate. It was frequent in the sample and many were examined. This species in generally regarded as being 3-5 radiate. An acidophile found in Sphagnum bogs and moorland pools. I'm grateful to Koos Meesters for the identification

Coesel, P.F.M. & Meesters, K.J. (2013) European Flora of the Desmid Genera Staurastrum and Staurodesmus
Prescott, W.G., et al. (2001 reprint) A Synopsis of North American Desmids. Part II, Desmidiaceae: Placodermae, Section 4