AlgaeBase

AlgaeBase is a global species database of information on all groups of algae, as well as one group of flowering plants, the sea-grasses.

AlgaeBase developed out of Michael Guiry's seaweed website seaweeds.ie, and has grown into a database of algae from throughout the world, and in fresh water and brackish as well as marine habitats. By 2005, the database contained about 65,000 names, and by September 2006, 121,130 species and infraspecific names were in the database, with 5,036 images, 36,042 bibliographic items, 127,889 distributional records. Currently, the data for the marine algae, particularly seaweeds, are the most complete. About 25,000 species of algae are included. of which the Rhodophyta, Chlorophyta, and Phaeophyceae are the most complete. The diatoms and the smaller freshwater green algae are the most incomplete groups.