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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 10-25µm |
| Width: | 5-8µm |
| Striae: | 18-21 striae in 10µm |
Description:
Valves elliptical with broadly rounded, (sub-)capitate or (in smaller specimen) only protruded ends. Obserevd cells usually short (L 10-25µm, W 5-8µm, 18-21 striae in 10µm). Axial area narrow, linear. Central area elliptical to transapically rectangular, usually bordered by several shortened striae. A single stigma is present, at the secondary side. Raphe filiform with weakly deflected central endings and small pores. Terminal fissures usually very short and almost straight. Transapical striae radiate throughout the entire valve.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Fairly common in soils influenced by marine animals (penguins, albatrosses, elephant seals) with elevated specific conductance and nutrient values.Widespread in the entire (Sub-)Antarctic Region.Luticola muticopsis is a highly variable taxon. Kobayasi (1965) tried to separate all possible variations in several types (such as f. reducta, f. evoluta). If should identify the possible type that occurs on Ile de la Possession, it is clear that it is somewhat intermediate between the f. reducta and evoluta. On the Antarctic Peninsula, L. muticopsis is usually found within penguin rookeries (personal observation). The fact that most observations on Ile de la Possession, have been made in samples taken from rookeries or other placed with increased animal influence, justifies probably entirely the identification of muticopsis instead of being a (new?) variety of mutica. The analysis of the SEM structure confirms this statement. The only point of difference is the larger number of striae in 10µm (18-21 on Ile de la Possession vs. 13-14 generally).
McMurdo Dry Valleys Waterbodies with Luticola muticopsis
- Bowles Creek
- Canada Stream
- Green Creek
- Huey Creek
- Von Guerard Stream
- Wharton Creek
Other sites with Luticola muticopsis
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Van Heurck 1909 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
Valve elliptique, a extrémités brusqement et longuement rétrécies-rostrées, subparalleles, tronquées. Striae radiantes au nombre do 10 in 1 c.d.m., formées de gros granules laissant un large blanc stauronéiforme pres du nodule median et montant un gors point isolé, unilateral au milieu de ce pseudo-stauros. Nodules terminaux petits, semblant prolongés de chaque coté en hamecon, detail qui a été omis dans le dessin et n’est apparent que dans und autre mise au point. Longeur: 2 c.d..m., Largeur: 1 c.d.m.
New combination
| Author: | Mann, D.G. 1990 |
|---|
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).
