|  Genus: Unicellular, attached on a substrate at one end of the cell; cell body slightly curved, ovoidal or cylidrical in shape; 
1 or two chloroplasts plate-like, without pyrenoids 
(Guide book to the "Photomicrographs of the Freshwater Algae", 1998). Species: 
Cell body 12-30 μm long, 10 μm wide 
(Ettl, Xanthophyceae 1. Teil, Süßwasserflora von Mitteleuropa 3, 1978).
 
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