Asterionella
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Category
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ClassFragilariophyceae
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OrderFragilariales
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FamilyFragilariaceae
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Type SpeciesAsterionella formosa Hass.
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ContributorSarah Spaulding, Mark Edlund - Jan 2009
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ReviewerSam Rushforth - Apr 2010
Displaying 2 of 2 species
Sorted from smallest to largest by maximum length
2 Additional Asterionella species
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Biodata Reference
Asterionella formosa var. gracillima
Biodata Reference
Asterionella ralfsii
Citations & Links
Citations
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Publication Link: doi:10.1139/f05-077
Links
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Index Nominum Algarum
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CAS
Cite This Page
Spaulding, S., Edlund, M. (2009). Asterionella. In Diatoms of North America. Retrieved April 25, 2024, from https://diatoms.org/genera/asterionella
Araphid
Asterionella
- Valve linear-lanceolate with capitate ends
- Spines present on valve margins
- Cells linked by mucilage pads forming characteristic stellate colonies
- Porefield one, or two
- Rimoportula(e) at headpole and/or footpole
The valves of Asterionella are symmetric to the apical axis and asymmetric to the transapical axis. In valve view, the valves are linear-lanceolate in shape, with capitate ends. Living cells attach by mucilage pads at the basal ends, or footpoles, to form characteristic stellate colonies. Living colonies present cells in girdle view,...