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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 11-12(18)µm |
| Width: | 3-3,5µm |
| Striae: | 24-26 striae in 10µm |
Description:
Valves elliptical-lanceolate with rounded ends (L 11-12(18)µm, W 3-3,5µm, 24 26 striae in 10µm). Axial area narrow, widening towards the central area. Central area rhomboid to elliptical, no fascia present. Raphe filiform with weakly deflected, rounded central pores and hooked terminal fissures. Transapical striae radiate, more convergent towards the poles. In SEM, the striae are divided into two parts by a long hyaline area.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Fairly common in larger, slightly acid lakes with low specific conductance (<100µS/cm) and low nutrient values.So far only found on Ile de la Possession.The taxon closely resembles C. evanida (see below) but can be distinguished by the longer, more lanceolate outline. C. aliena appears much smaller than C. evanida, due to a larger L/W ratio. Based on all characters, this taxon clearly belongs to the genus Chamaepinnularia.
McMurdo Dry Valleys Waterbodies with Chamaepinnularia aliena
- Bowles Creek
- Canada Stream
- Green Creek
Other sites with Chamaepinnularia aliena
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Krasske 1996 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: | Van de Vijver & Le Cohu |
|---|
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).
