135,191 species and infraspecific names are in the database,
50,240 bibliographic items,
223,622 distributional records.
AlgaeBase is a database of information on algae that includes terrestrial, marine and freshwater organisms.
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Another video by Chris Carter
A.Braun. The structure of this unusual colonial green alga is difficult to appreciate in a plane image: this movie is a focus-through presentation. The fundamental unit is a group of four cells: two heart-shaped outer cells and two straight inner cells, all with connecting processes. The colony shown here is a group of four such coenobia linked by mother-cell wall remnants. See the reference below for a full description. This sample was collected by Ingrid Jüttner from Lough Cluain, Co. Galway, Ireland.