Observations
Observations: | Bart Van de Vijver |
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Length: | 9-11 µm |
Width: | 3-4µm |
Striae: | 28-34 transapical striae in 10µm |
Description:
Valves linear, slightly convex with rounded apices. (L 9-11 µm, W 3-4µm, 28-34 transapical striae in 10µm). RV: lanceolate axial area with filiform raphe, central area stauroneiform. ARV: narrow axial area, sometimes a little bit wider in the middle, central area clearly lacking. SEM structure of the areolae as in the nominate species.
Morphology: | Monoraphid |
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Distribution: |
Autecology:
Notes:
Same ecology as the nominate species.Kerguelen (Bourrelly & Manguin 1954, Le Cohu & Maillard 1983), Macquarie Island (McBride et al. 1999).Achnanthes confusum var. atomoides Manguin was separated from the nominate species by the lack of the wider longitudinal area on the araphid valve (Bourrelly & Manguin 1954, Le Cohu & Maillard 1983). Lange-Bertalot & Krammer (1989) include the variety within the nominate species. However, when comparing populations of both the nominate species and the variety, there is sufficient morphological evidence that the variety atomoides should be kept as a separate variety.
Other sites with Psammothidium confusum var. atomoides
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
Author: | Manguin 1954 |
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Length: | |
Width: | |
Striae: |
Original Description:
New combination
Author: |
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Citations
Index Nominum Algarum (INA):
- Original
- If an INA link is available, it will be shown above
- The INA is a bibliographic reference "card file" for algal taxonomy, containing nearly 200,000 names of algae (in the broad sense).