Pleurosira
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Category
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ClassMediophyceae
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OrderEupodiscales
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FamilyEupodiscaceae
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Type SpeciesMelosira (Pleurosira) thermalis (Meneghini) San Leon
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ContributorSarah Spaulding, Mark Edlund - Dec 2008
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ReviewerSam Rushforth - Jun 2010
Displaying 1 of 1 species
Sorted from smallest to largest by maximum length
Citations & Links
Citations
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Publication Link: 10.1111/j.0022-3646.1992.00247.x
Links
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Index Nominum Algarum
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CAS
Cite This Page
Spaulding, S., Edlund, M. (2008). Pleurosira. In Diatoms of North America. Retrieved May 01, 2026, from https://diatoms.org/genera/pleurosira?x-craft-preview=cab8b13ef68d1e257235fd2491770f51dfe0c9a6c0ad3b95411776e5316d603alxhbyabypv
Centric
Pleurosira
- Valves orbicular
- Ocelli 2-4, prominent
- Rimoportula 1 or more, positioned near center of valve
- Valves form zig-zag colonies
Pleurosira has very large orbicular valves with 2-4 prominent ocelli, the number depending on salinity. The ocelli secrete mucopolysaccaride pads that join cells together in large, zig-zag colonies. One or more rimoportula are positioned near the center of the valve face. Colonies form filaments that are visible in streams.
Pleurosira is...