Prasiolaceae

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Prasiolaceae is a family of green algae in the order Prasiolales.[1] Members of this family are found in freshwater, terrestrial, and marine habitats.[2]

Algae in the family Prasiolaceae consist of thalli with blades a single cell thick (i.e. monostromatic). Vegetative cells are polygonal with two to four cells arranged within a parent cell wall. Each cell has a single, stellate chloroplast and a central pyrenoid.[3]

Traditionally, it was the only family in the order Prasiolales.[4] However, molecular phylogenetics have shown that additional algae with simple morphologies, such as Stichococcus, also belong to the same clade as this family.[5]

Phylogeny

Molecular phylogenetic studies suggest the following relationships:[6]

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Another, older study places Prasionella as sister to Rosenvingiella.[4] The above cladogram excludes the genus Schizogonium, which is taxonomically problematic and likely a synonym of Rosenvingiella.[7]

References

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