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Cosmarium bipyrenoideum Desmid Species Outer Hebrides

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Phylum: Charophyta   Family: Desmidiaceae

Cosmarium bipyrenoideum Coesel & Meesters

First described in 2015 (Coesel & Meesters) from a shallow pool in ‘Kuinderbos’ near Kuinre, The Netherlands. The specific epithet describes it well as few cells of this size have two pyrenoids per semicell. The current find is from the shallow margins of a disused quarry which is slightly alkaline. This is a first British record.

Coesel, P. & Meesters, K. (2015) Taxonomic notes on Dutch desmids VII (new species, new names, new record)
Kouwets, F.A.C. (in manuscript) European Flora of the Desmid Genus Cosmarium