Cosmarium impressulum var. crenulatum
https://pandorina.org/wp-content/uploads/2022/06/Cosmarium-crenulatum_v2-1024x569.jpg 1024 569 Török-Karasznai Enikő Török-Karasznai Enikő https://secure.gravatar.com/avatar/a94c0eab5abe111a8218f297e021920f?s=96&d=mm&r=gDesmidiales
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