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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 12-36µm |
| Width: | 2,5-4,5µm |
| Striae: | 9-12 striae in 10µm |
Description:
Valves linear with cuneately rounded, somewhat subrostrate ends (L 12-36µm, W 2,5-4,5µm, 9-12 striae in 10µm). Axial area narrow, linear. Central area a broad, symmetrical fascia. Raphe filiform with clearly laterally deflected central endings and small pores. Terminal fissures ?- to weakly sickle-shaped. Transapical striae almost parallel in the middle to convergent towards the poles.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Rare, only found in higher abundances (4-5%) in so-called fell-field area, stony places lacking almost any vegetation cover. Moisture, specific conductance and nutrient values are very low. pH 6,1-6,7.Kerguelen (Bourrelly & Manguin 1954, Le Cohu & Maillard 1986, Van de Vijver et al. 1998a).Bourrelly & Manguin (1954) described this taxon as a variety of P. borealis. The dimensions and the general valve outline justify however a separate taxon. In fact, this taxon has more affinities with taxa such as P. schimanskii Krammer and P. incognita Krasske than with P. borealis. It is however not conspecific with one of these taxa since the structure of the striae is somewhat different. Therefore, we change the status into a separate species. In Van de Vijver & Beyens (1998b, 1999b) it was confused with P. lagerstedtii (Cleve) Cleve-Euler and P. intermedia (Lagerstedt) Cleve.
Other sites with Pinnularia cuneorostrata
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Manguin 1954 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: | Van de Vijver & Le Cohu |
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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).
