Planctonema
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| Planctonema | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Division: | Chlorophyta |
| Class: | Trebouxiophyceae |
| Order: | Chlorellales |
| Family: | Oocystaceae |
| Genus: | Planctonema Schmidle |
| Type species | |
| Planctonema lauterbornii Schmidle[1] | |
| Species | |
Planctonema is a genus of green algae in the class Trebouxiophyceae.[2] It is found in freshwater habitats as plankton,[1] and is found worldwide. It is dominant in lakes during the summer and autumn months.[3]
The classification of Planctonema has varied historically. It was originally described by Wilhelm Schmidle as a heterokont, and has also been placed in the family Ulotrichaceae. Molecular phylogenetic evidence has shown that Planctonema is closely related to members of the family Oocystaceae,[3] and AlgaeBase places Planctonema in Oocystaceae.[1] However, it lacks the cell wall ultrastructure characteristic of the family.[3]
