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Which green algae are single-celled, colonial, or filamentous?
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Algae
The macroscopic genus of algae known as Acetabularia is commonly called “mermaid's wine glass” because of the distinctive umbrella-like shape of the tips of its stalks.
Green algae exhibit a diverse range of structural forms, including single-celled, colonial, and filamentous varieties. Examples of these forms within the division Chlorophyta include:1
- Single-celled: These organisms consist of a single cell and include genera such as Chlamydomonas and various desmids.12
- Colonial: These are organized groups of cells, such as those found in Hydrodictyon and Volvox.1
- Filamentous: These forms consist of cells arranged in chains, resembling strings of beads. Examples include Spirogyra and Cladophora.31
Beyond these structures, green algae also encompass tubular forms, such as Acetabularia and Caulerpa.12