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Category
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Class
Bacillariophyceae
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Order
Naviculales
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Family
Naviculaceae
Sorted from smallest to largest by maximum length
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Links
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Index Nominum Algarum
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CAS
Bahls, L.
(2012).
Haslea.
In Diatoms of North America.
Retrieved June 07, 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...