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Diagnostic features

Small ovoid cells, each set within a vase-like lorica.  Each cell has 2 flagella of unequal length protruding from the open end of the lorica. Chloroplasts are golden-brown. Usually a cluster of loricas attach to each other form motile branching colonies.

Typical habitats

Common in the plankton of lakes and ponds (not sewage ponds)


Kingdom Chromista
Phylum Ochrophyta
Class Chrysophyceae
Order Chromulinales
Family Dinobryaceae
Common name Golden-brown algae