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Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 30-45µm |
| Width: | 2-4µm |
| Striae: | 10-13 fibulae in 10µm |
Description:
Valves lanceolate with sometimes parallel margins. Ends clearly capitate (L 30 45µm, W 2-4µm, 10-13 fibulae in 10µm). Fibulae irregularly placed on the raphe keel, usually the two in the middle are more spaced than the others. Transapical striae almost not visible in LM, 30-35 in 10µm).
| Morphology: | Nitzschioid |
|---|---|
| Distribution: |
Autecology:
Notes:
Fairly common in terrestrial mosses (mean F-value 4,2 ± 1,4). Common in small, acid (5,2-6,6) pools with low specific conductance (<150µS/cm) and nutrient values (phosphate <0,03mg/l).First record for the (Sub-)Antarctic Region.The population observed on Ile de la Possession shows affinities with N. tubicola but the spacing and position of the middle fibulae makes this identification somewhat unclear. Several valves however, have been observed with the middle fibulae not more spaced than the others, a feature that is considered to be uncommon within N. tubicola. The affinity with N. recta Hantzsch is doubtful due to different dimensions (length, width, number of fibulae and striae in 10µm). Therefore the connection with N. tubicola seems more logical. Detailed SEM-based comparisons between the Crozet-population and what is believed to be true N. tubicola should clarify this uncertainty.
Other sites with Nitzschia aff. tubicola
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Grunow 1988 |
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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).
