Algae (UK: /ˈælɡiː/ AL-ghee, US: /ˈældʒiː/ AL-jee; sg.: alga /ˈælɡə/ AL-gə) are any of a large and diverse group of photosynthetic, eukaryotic organisms...

cyanobacteria's informal common name, blue-green algae, although as prokaryotes they are not scientifically classified as algae. Cyanobacteria are probably the most...

Brown algae (sg.: alga) are a large group of multicellular algae comprising the class Phaeophyceae. They include many seaweeds located in colder waters...

The green algae (sg.: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed...

Red algae, or Rhodophyta (/roʊˈdɒfɪtə/, /ˌroʊdəˈfaɪtə/; from Ancient Greek ῥόδον (rhódon) 'rose' and φυτόν (phutón) 'plant'), make up one of the oldest...

chrysomonads, golden-brown algae or golden algae, are a large group of algae, found mostly in freshwater. Golden algae is also commonly used to refer...

Algae fuel, algal biofuel, or algal oil is an alternative to liquid fossil fuels that uses algae as its source of energy-rich oils. Also, algae fuels...

Coralline algae are red algae in the order Corallinales. They are characterized by a thallus that is hard because of calcareous deposits contained within...

species of algae Ice algae, algae that live in sea ice AlgaeBase, a database of algae Algae Lake, lake in Antarctica Algos National Algae Association...

green algae. Historically, as in Aristotle's biology, the plant kingdom encompassed all living things that were not animals, and included algae and fungi...