Pleurotaenium
genus of algae
Pleurotaenium is a genus of green algae, specifically of the desmids (Desmidiaceae). It is a cosmopolitan genus, with about 50 species. Members of Pleurotaenium are found in freshwater habitats, and may be found in acidic, neutral or alkaline waters.
Description
Pleurotaenium consists of long, cylindrical, bilaterally symmetrical cells with blunt ends; they are typically solitary, but occasionally joined end-to-end to form filaments. There is a shallow median constriction (an isthmus), where the two halves (called semicells) of the cells are joined. Semicells are widened at the base and truncate at the apex. At each apex, there is a vacuole filled with small granules. The cell wall is covered in fine pores, and may have mammillate protuberances, or spines. Cells have multiple chloroplasts, which are parietal bands from base to apex; these typically have several pyrenoids. The nucleus is at the isthmus.
This brief starts where responsible research should: with the source description of “Pleurotaenium” as genus of algae. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as genus of algae. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jan 30, 2026. The linked authority identifier is Q7204822. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Pleurotaenium” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.