This is a list of genera in the green algae class Trebouxiophyceae, sub-divided by order and family. [1] Some genera have uncertain taxonomic placement and are listed as incertae sedis . Ranks without accepted subordinate taxa have been omitted. The list is based on the data available in AlgaeBase, the Integrated Taxonomic Information System (ITIS), the National Center for Biotechnology Information taxonomic database (NCBI), and other taxonomic databases.
The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral- or ribbon-shaped in different species. Most of the members have one or more storage bodies called pyrenoids located in the chloroplast. Pyrenoids contain protein besides starch. Some green algae may store food in the form of oil droplets. They usually have a cell wall made up of an inner layer of cellulose and outer layer of pectose.
The Trebouxiophyceae are a class of green algae, in the division Chlorophyta. Their circumscription within the green algae is not well established due to the need for more genetic studies at higher levels within the group.
Prasiolales is an order of green algae in the class Trebouxiophyceae.
Ulotrichales is an order of green algae in the class Ulvophyceae.
Chlorocystidaceae is a family of green algae. It is the only family in the order Chlorocystidales. The family was formerly placed in the order Ulotrichales.
Cladophoraceae are a family of green algae in the order the Cladophorales. This family includes notably the genus Chaetomorpha which has a few members used in saltwater aquariums.
Selenastraceae is a family of green algae in the order Sphaeropleales. Members of this family are common components of the phytoplankton in freshwater habitats worldwide. A few species have been found in brackish and marine habitats, such as in the Baltic Sea.
The Tetrasporaceae are a family of green algae, specifically of the Chlamydomonadales.
Trentepohliaceae are a family of green algae in the order Trentepohliales.
Microthamnion is a genus of green algae in the family Microthamniaceae.
Pseudochlorella signiensis is a species of green algae in the family Koliellaceae. Pabia signiensis, the only species in the genus Pabia, is regarded as a synonym. Pabia was sunk into Pseudochlorella in 2016.
Physolinum is a genus of green algae in the family Trentepohliaceae. The only species in the genus, Physolinum monilia, is currently regarded as a synonym of Trentepohlia rigidula.
The Gonatozygaceae are one of four families of Charophyte green algae in the order Desmidiales (desmids).
Bambusina is a genus of fresh-water green algae in the family Desmidiaceae.
Penium is a genus of green algae, and the sole member of the family Peniaceae. The genus contains about 39 species.
Staurodesmus is a genus of green algae, specifically of the Desmidiaceae.
The Rivulariaceae are a family of cyanobacteria within the Nostocales in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip.