Rossithidium
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Category
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ClassBacillariophyceae
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OrderAchnanthales
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FamilyAchnanthaceae
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Type SpeciesAchnanthes pusilla Grunow in Cleve and Grunow
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Contributor
Displaying 5 of 5 species
Sorted from smallest to largest by maximum length
2 Additional Rossithidium species
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Biodata Reference
Rossithidium duthii
Biodata Reference
Rossithidium lineare
Citations & Links
Citations
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Publication Link: doi: 10.1080/0269249X.2011.644636
Links
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Index Nominum Algarum
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CAS
Cite This Page
Potapova, M., Spaulding, S., Edlund, M. (2008). Rossithidium. In Diatoms of North America. Retrieved May 01, 2026, from https://diatoms.org/genera/rossithidium?x-craft-preview=409442409a997390693ff24c7010fd6f1c96fb56f8f091fa016a63de9a54aaccecpiqubknd
Monoraphid
Rossithidium
- Frustules heterovalvar
- Raphe valve concave, rapheless valve convex
- Valves very small, linear-elliptic to lanceolate
- Striae uni- or biseriate
- Terminal raphe fissures absent
The valve outline is linear, elongate or lanceolate, with rounded apices. The striae are parallel throughout the valve, on both raphe and rapheless valves. The striae are variable and may be uni- or biseriate. The axial area is narrow. The raphe is straight with expanded proximal raphe ends. Terminal raphe fissures are absent. The...