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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 69-116µm |
| Width: | 14-21µm |
| Striae: | 27-28 striae in 10µm |
Description:
Valves linear-elliptical with broadly rounded, clearly rostrate ends (L 69 116µm, W 14-21µm, 27-28 striae in 10µm). Transapical striae parallel, slightly radiating towards the center. Raphe straight with slightly thickened external endings (both polar and central). The raphe is bordered by two thickened internal ribs, fused together to form the helictoglossa at the poles. Centrally, both raphe endings are also fused to each other, forming internally a short central nodule with parallel margins.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Very rare on Ile de la Possession where it was found in very low numbers (max. 2%). This taxon seems to prefer circumneutral (pH 6,5-7,5) waterbodies with low specific conductance values (60-260µS/cm). It was also found in a wet moss vegetation (max. 1%).Kerguelen (Germain 1937, Bourrelly & Manguin 1954, Larson 1974, Le Cohu & Maillard 1986, Van de Vijver et al. 1998a).In the original description, Germain gives smaller dimensions for this taxon, but after examining a whole series of valves, the dimensions should be adjusted as described above.
Other sites with Frustulia pulchra
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Germain 1937 |
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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).
