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Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 9-23µm |
| Width: | 3-4,5µm |
| Striae: | 24-26 striae in 10µm |
Description:
Valves linear to linear-lanceolate with weakly subcapitate, rounded ends (L 9-23µm, W 3 4,5µm, 24-26 striae in 10µm). Axial area narrow, linear. Central area large, almost rectangular, bordered by several very short striae. Raphe filiform, straight with indistinct central pores and deflected terminal fissures. Transapical striae strongly radiate in the middle, slightly radiate towards the ends. In SEM, striae appear to be uniseriate.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Pointe de Bougainville, Ile de la Possession, Crozet Archipelago, Sample W540 (coll. date 17/11/1997).Rare in larger, slightly acid lakes with low nutrient and specific conductance values (<100µS/cm).So far only known from Ile de la Possession.This new Sellaphora species shows some affinities with Sellaphora disjuncta Hustedt but can be distinguished by the less capitate apices and the (usually) smaller size. Navicula joubaudii Germain has a similar valve outline but is smaller and shows biseriate striae.
Other sites with Sellaphora subantarctica
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Van de Vijver & Beyens |
|---|---|
| Length: | 9-23µm |
| Width: | 3-4,5µm |
| Striae: | 24-26 striae in 10µm |
Original Description:
Valves linear to linear-lanceolate with weakly subcapitate, rounded ends (L 9-23µm, W 3 4,5µm, 24-26 striae in 10µm). Axial area narrow, linear. Central area large, almost rectangular, bordered by several very short striae. Raphe filiform, straight with indistinct central pores and deflected terminal fissures. Transapical striae strongly radiate in the middle, slightly radiate towards the ends. In SEM, striae appear to be uniseriate.
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).
