Haslea
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Category
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ClassBacillariophyceae
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OrderNaviculales
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FamilyNaviculaceae
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Type SpeciesHaslea ostrearia (Gaillon) Simonsen
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ContributorLoren Bahls - Apr 2012
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Citations & Links
Citations
Links
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Index Nominum Algarum
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CAS
Cite This Page
Bahls, L. (2012). Haslea. In Diatoms of North America. Retrieved December 08, 2023, from https://diatoms.org/genera/haslea
Symmetric Biraphid
Haslea
- Valves lanceolate with acute apices
- Central costae thickened, forming a narrow fascia
- Raphe sternum with asymmetric thickened area in the central valve
- Striae crossed by longitudinal strips
Valves are lanceolate with acute apices and a central raphe system. Two or three thickened transapical costae on either side of the valve center form a narrow fascia. The raphe sternum is thickened on one side of the axial area and is fused to the central ribs, giving valves a cruciform appearance. Striae are uniseriate, containing...