Observations
Observations: | Bart Van de Vijver |
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Length: | 11,5-23µm |
Width: | 3,5-5µm |
Striae: | 25 striae in 10µm |
Description:
Valves lanceolate with subrostrate ends. (L 11,5-23µm, W 3,5-5µm, 25 striae in 10µm). RV: axial area linear, slightly widened near the central area. Central area with more spaced, (shorter) striae (sometimes at one side, no shorter striae can be observed). Raphe filiform. ARV: axial area very narrow, linear, wider in the central area. Median striae much shorter.
Morphology: | Monoraphid |
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Distribution: |
Autecology:
Notes:
Fairly abundant in wet, non-submerged mosses. In standing waterbodies, this taxon seems to prefer smaller, slightly acid pools with low conductivity values (<100µS/cm).Kerguelen (Bourrelly & Manguin 1954, Larson 1974, Le Cohu & Maillard 1983, Van de Vijver et al. 1998a, 2001), South Orkney Islands (Oppenheim & Greenwood 1990), South Georgia (Van de Vijver & Beyens 1996, 1997a).Le Cohu & Maillard (1983) suggest that A. modestiforme should be considered to be a form of the A. minutissimum-complex. This is not followed by Lange-Bertalot & Krammer (1989) who kept A. modestiforme as a separate taxon.
Other sites with Achnanthidium modestiforme
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
Author: | Lange-Bertalot 1989 |
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Length: | |
Width: | |
Striae: |
Original Description:
New combination
Author: | Van de Vijver |
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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).