Observations
Observations: | Bart Van de Vijver |
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Length: | 47,3-93µm |
Width: | 2,0-3,6µm |
Striae: |
Description:
Valves linear with capitate ends. These are the longest and most narrow capucina-valves that are recorded in the Crozet population (L 47,3-93µm (mean 65,1µm), W 2,0-3,6µm (mean 2,6µm), mean L/W ratio 26,4). Most of the valves possess a typical central sternum expansion to (rarely) one or (mostly) both sides.
Morphology: | Araphid |
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Distribution: |
Autecology:
Notes:
Common, but locally, in all kinds of freshwater habitats (both standing & running). pH-optimum 6,8.Uncertain due to the confusion within Synedra rumpens var. familiaris that probably is only a synonym of morphotype 3.Based purely on valve outline and structure of the central striation interruption, this morphotype shows high similarities with Fragilaria vaucheriae var. tenuis Manguin and var. longissima Manguin that might be considered as synonyms of morphotype 3.
Other sites with Morphotype 3 cf. F. cap. var. gracilis
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
Author: | Oestrup |
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Length: | |
Width: | |
Striae: |
Original Description:
New combination
Author: | Hustedt 1991 |
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Citations
Index Nominum Algarum (INA):
- 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).