The glaucophytes, also known as glaucocystophytes or glaucocystids, are a small group of unicellular algae found in freshwater and moist terrestrial environments, less common today than they were during the Proterozoic. The stated number of species in the group varies from about 14 to 26. Together with the red algae (Rhodophyta) and the green algae plus land plants, they form the Archaeplastida.
Bornetella is a genus of green algae in the family Dasycladaceae.
Fritschiella is a genus of green algae, the only genus in the family Fritschiellaceae. There are two species F. tuberosa and a new freshwater species from China, F. aquatilis
Paulschulzia is a genus of green algae, specifically of the family Tetrasporaceae.
Rosenvingiella is a genus of green algae in the family Prasiolaceae.
Schroederiella is a genus of green algae in the family Scenedesmaceae.
Tellamia is a monotypic genus of green algae, in the family Kornmanniaceae. It has only one known species, Tellamia contortaBatters, 1895
Trentepohlia is a genus of filamentous chlorophyte green algae in the family Trentepohliaceae, living free on terrestrial supports such as tree trunks and wet rocks or symbiotically in lichens. The filaments of Trentepohlia have a strong orange colour caused by the presence of large quantities of carotenoid pigments which mask the green of the chlorophyll.
Pringsheimiella is a genus of green algae, in the family Ulvellaceae.
Skvortzoviothrix is a genus of green algae, in the family Chaetophoraceae. As of February 2022, the only species is Skvortzoviothrix terrestris.
Zoddaea is a monotypic genus of green algae in the family Chaetophoraceae. It only contains one known species, Zoddaea viridisBorzì
Martensia is a genus of red algae, containing the following species:
Ralfsia verrucosa is a species of crustose brown seaweed in the family Ralfsiaceae. It grows intertidally in temperate waters around the world. In South Africa it is part of a mutualistic relationship with a limpet.
Cutleria is a genus of brown algae, one of 2–6 genera in the order Cutleriales. AlgaeBase recognises 11 species in the genus.
Braarudosphaera bigelowii is a coastal coccolithophore in the fossil record going back 100 million years. The family Braarudosphaeraceae are single-celled coastal phytoplanktonic algae with calcareous scales with five-fold symmetry, called pentaliths. With 12 sides, it has a regular dodecahedral structure, approximately 10 micrometers across.
Maurice-Augustin Gomont was a French phycologist.
Entwisleia is a monotypic genus in the red algae family, Entwisleiaceae. There is just one species in this genus, Entwisleia bella, from south-eastern Tasmania and represents both a new family and a new order (Entwisleiales) in the Nemaliophycidae.
Zanardinia is a monotypic genus of seaweed in the brown algae. The only species, Zanardinia typus, commonly known as penny weed, is native to the northeastern Atlantic Ocean and the Mediterranean Sea.
Crouania is a genus of red algae (Rhodophyta) in the Callithamniaceae family. The name of the genus honours the French born Crouan brothers, Pierre-Louis Crouan and Hippolyte-Marie Crouan. It was first described by Jacob Georg Agardh in 1842, and the type species is Crouania attenuata.
Alvikia is a monotypic genus of green algae in the class Chlorophyceae. Its taxonomy is uncertain. It only contains the known species of Alvikia littoralis.
