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Algae (UK: / ˈ æ l ɡ iː / AL-ghee, US: / ˈ æ l dʒ iː / AL-jee; [3] sg.: alga / ˈ æ l ɡ ə / 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.
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 ...
Over 7,000 species are currently described for the red algae, [5] but the taxonomy is in constant flux with new species described each year. [40] [41] The vast majority of these are marine with about 200 that live only in fresh water. Some examples of species and genera of red algae are: Cyanidioschyzon merolae, a primitive red alga ...
Chlamydomonas (/ ˌklæmɪˈdɒmənəs, - dəˈmoʊ -/ KLAM-ih-DOM-ə-nəs, -də-MOH-) is a genus of green algae consisting of about 150 species [2] of unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae". [3] Chlamydomonas is used as a model organism for molecular ...
Chlorella vulgaris. Chlorella is a genus of about thirteen species of single- celled green algae of the division Chlorophyta. The cells are spherical in shape, about 2 to 10 μm in diameter, and are without flagella. Their chloroplasts contain the green photosynthetic pigments chlorophyll-a and -b.
Green algae are often classified with their embryophyte descendants in the green plant clade Viridiplantae (or Chlorobionta). Viridiplantae, together with red algae and glaucophyte algae, form the supergroup Primoplantae, also known as Archaeplastida or Plantae sensu lato. The ancestral green alga was a unicellular flagellate.
Information about each species' taxonomy, nomenclature and distribution is included, and the algae covered include terrestrial as well as marine and freshwater species, such as seaweeds, phytoplankton, and freshwater algae. As of 2019, marine species have the best coverage, including sea-grasses. [3] As of 2014 there were nearly 17,000 images ...
Scenedesmus obtusus. Meyen, 1829. Species. Scenedesmus dimorphus. Scenedesmus acuminatus. 72 others (see text) Scenedesmus is a genus of green algae, in the class Chlorophyceae. They are colonial and non-motile. They are one of the most common components of phytoplankton in freshwater habitats worldwide.