Observations
Observations: | Bart Van de Vijver |
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Length: | 10-15µm |
Width: | 2-3µm |
Striae: | 30-32 striae in 10µm |
Description:
Valves linear with strongly undulating margins and broadly rounded, subcapitate ends (L 10-15µm, W 2-3µm, 30-32 striae in 10µm). The poles never extend beyond the undulations. Transapical striae slightly radiate in the middle, more and more convergent towards the poles. Axial area well-defined, linear (1/3 of the valve width). Raphe straight, filiform with only slightly marked endings. Terminal pores ending near the last striae. Central area widened, generally bordered by 3 striae.
Morphology: | Naviculoid |
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Distribution: |
Autecology:
Notes:
Common in semi-wet soils (± 50%), usually with higher specific conductance values and higher phosphate and chloride concentrations. pH-indifferent but seems not to occur at pH > 7 (range 4,3-6,9).Kerguelen (Le Cohu & Van de Vijver (in press)).Easily distinguishable from D. langebertalotii by its larger shape and the lower number of striae. More morphological details on D. crozetikerguelensis are given in Le Cohu & Van de Vijver (in press).
Other sites with Diadesmis crozetikerguelensis
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
Author: | Le Cohu & Van de Vijver |
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Length: | 10-15µm |
Width: | 2-3µm |
Striae: | 30-32 striae in 10µm |
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).