Water net
- kingdom: Plantae
- phylum: Chlorophyta
- class: Chlorophyceae
- order: Sphaeropleales
- family: Hydrodictyaceae
- genus: Hydrodictyon
- species: Hydrodictyon reticulatum
Erlangen
Bavaria
Albertstadt
Saxony
Germany
Råsunda
Skytteholm
Sundbyberg
Stockholm
Sweden
Porterville
California
Greencastle
Indiana
Belmont
Cambridge
East Falmouth
Somerville
Watertown
Massachusetts
Ann Arbor
Michigan
Minneapolis
Minnesota
National Park
New Brunswick
Somerset
Trenton
New Jersey
Vergennes
Vermont
United States