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Typically excluded. Cyanobacteria (blue-green algae) Embryophyta (land plants) Algae (UK: / ˈælɡiː / AL-ghee, US: / ˈældʒiː / AL-jee; [3] sg.: alga / ˈælɡə / AL-gə) is an informal term for any organisms of a large and diverse group of photosynthetic eukaryotes, which include species from multiple distinct clades.
Volvox. Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. Volvox species form spherical colonies of up to 50,000 cells, and for this reason they are sometimes called globe algae. They live in a variety of freshwater habitats, and were first reported by Antonie van Leeuwenhoek in 1700.
A number of Paleozoic fossils have been tentatively classified with the brown algae, although most have also been compared to known red algae species. Phascolophyllaphycus possesses numerous elongate, inflated blades attached to a stipe. It is the most abundant of algal fossils found in a collection made from Carboniferous strata in Illinois. [43]
Pseudochordaceae. Kelps are large brown algae or seaweeds that make up the order Laminariales. There are about 30 different genera. [3] Despite its appearance, kelp is not a plant but a stramenopile, a group containing many protists. [4]
The genus is distinguishable because of its characteristic shape resembling a peacock tail structure. [5] It can be found a wide range of habitats, ranging from intertidal to subtidal zones. Padina are found to be more prolific in clear waters at a depth of 15–20 m but can be seen up to 110 m in depth, attached to hard substrates or growing ...
Zygnematophyceae. Cladistically included but traditionally excluded taxa. Embryophyta. Charophyta (UK: / kəˈrɒfɪtə, ˌkærəˈfaɪtə /) is a group of freshwater green algae, called charophytes (/ ˈkærəˌfaɪts /), sometimes treated as a division, [2] yet also as a superdivision [3] or an unranked clade.
Green algae on coastal rocks at Shihtiping in Taiwan. Chlorophytes are an important portion of the phytoplankton in both freshwater and marine habitats, fixating more than a billion tons of carbon every year. They also live as multicellular macroalgae, or seaweeds, settled along rocky ocean shores. [8]
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. The name is an informal term for a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as ...