Images
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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 31-42µm |
| Width: | 14-19µm |
| Striae: | 15 striae in 10µm |
Description:
Valves strongly dorsiventral, crescent-shaped, in girdle-view broadly elliptical with blunt, dorsally curved ends (L 31-42µm, W 14-19µm, 15 striae in 10µm). Dorsal side strongly convex, ventral side concave or straight. Width of individual valve 7-9µm. Hyaline area between valve face and mantle face only in SEM clearly visible, in LM present as a small line interrupting the striae. Striae uniseriate, consisting of several long lineolae, slightly radiate. Short striae visible on the ventral side. Axial area narrow. Raphe placed on so-called raphe ledge. Central raphe endings first curved ventrally, then terminating towards the dorsal valve side. Terminal fissures sharply bent dorsally. Central area asymmetrical with a ventral, broadening fascia and dorsally surrounded by shortened striae.
| Morphology: | Amphoroid |
|---|---|
| Distribution: |
Autecology:
Notes:
Rare on Ile de la Possession, usually found in relatively large lakes with very high pH (10,4) and fairly low conductivity (170µS/cm). In mosses and soils, no observations were made.Kerguelen (Germain 1937, Bourrelly & Manguin 1954, Le Cohu & Maillard 1986, Van de Vijver et al. 1998a, 2001), Continent (Gillieson 1991, Hodgson et al. 2001), South Georgia (Van de Vijver unpublished results), South Shetland Islands (Temniskova-Topalova et al. 1996).
Other sites with Amphora copulata
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Kützing |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: | Schoeman & Archibald 1986 |
|---|
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).
