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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 15-25µm |
| Width: | 4-5µm |
| Striae: | 34-40 striae in 10µm |
Description:
Valves linear, convex in the middle with subcapitate, rounded ends (L 15-25µm, W 4-5µm, 34-40 striae in 10µm). Transapical striae slightly radiate, parallel near the largest width and finally convergent near the poles. Hyaline area bordering the striae much larger than the striae. Axial area very narrow, linear, widened in the median part and clearly divergent near the poles. Central area elliptical, bordered by 6-7 short striae. Raphe straight, filiform with indistinct pores.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Partly unknown due to confusion with D. arcuata. Common in almost circumneutral, relatively dry (40-50%) soil samples with low specific conductance but elevated salinity (i.e. chloride) values.Kerguelen (Le Cohu & Van de Vijver (in press)).D. costei bears a large similarity to D. arcuata but it can be easily separated by the very narrow axial area and the striae that diverge near the poles. More morphological details are given in Le Cohu & Van de Vijver (in press).
Other sites with Diadesmis costei
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Le Cohu & Van de Vijver |
|---|---|
| Length: | 15-25µm |
| Width: | 4-5µm |
| Striae: | 34-40 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).
