Images
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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 13-26µm |
| Width: | 3,5-4,5µm |
| Striae: | 11-12 striae in 10µm |
Description:
Valves linear-elliptical with convex sides and broadly rounded, sometimes slightly subrostrate ends (L 13-26µm, W 3,5-4,5µm, 11-12 striae in 10µm). Axial area narrow, linear. Central area large, forming a broad fascia. Raphe filiform, slightly deflected in the middle with small central pores, close together. Terminal fissures ?-shaped but hard to resolve in LM. Transapical striae moderately radiate in the middle becoming strongly convergent towards the ends. No longitudinal bands present.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Common in relatively dry (<45%), acid soils with higher specific conductance values (>500µS/cm). Prefers also drier mosses (mean F-value 4,5±1,7). Less frequently observed in water habitats such as lakes and rivers.Kerguelen (Bourrelly & Manguin 1954, Larson 1974, Le Cohu & Maillard 1986, Van de Vijver et al. 1998a, 2001), South Georgia (Van de Vijver & Beyens 1997a), Antarctic Peninsula (Van de Vijver & Beyens 1997b), South Shetland Islands (Björck et al. 1993, Kawecka et al. 1998), Macquarie Island (McBride et al. 1999).
Other sites with Pinnularia obscura
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Krasske 2000 |
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| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
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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).
