Water net

The water net (genus Hydrodictyon) is a taxon of freshwater green algae in the family Hydrodictyaceae. Hydrodictyon does well in clean, eutrophic water, and has become a nuisance in New Zealand, where it has been recently introduced. The name water net comes from the mesh structure of their colonies, which can extend several decimeters.

Water net
Scientific classification
(unranked): Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Sphaeropleales
Family: Hydrodictyaceae
Genus: Hydrodictyon
Roth
Species
  • Hydrodictyon africanum
  • Hydrodictyon indicum
  • Hydrodictyon patenaeforme
  • Hydrodictyon reticulatum

Hydrodictyon consists of colonies of cylindrical cells that are joined end-to-end to form a net-like structure. The cells usually form pentagonal or hexagonal subgroups. Cells contain a parietal chloroplast with many small pyrenoids.

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