Images
Click any image to enlarge...
LM image scalebar = 10 µm = 72 pixels
SEM image scalebar = 2 µm
Observations
| Observations: | Sarah Spaulding and Rhea Esposito |
|---|---|
| Length: | 10-22 µm |
| Width: | 3-5 µm |
| Striae: | 20-25 in 10 µm at the center; 24-28 in 10 µm at the ends |
Description:
Valve elliptical-lanceolate with rostrate ends. Axial area thin; slightly widening towards the central portion of the valve. Central area indistinct. Raphe simple and straight; slightly narrowed at the distal ends. Striae parallel throughout; very finely spaced at the valve endings.
| Morphology: | Naviculoid |
|---|---|
| Distribution: | Widespread |
Autecology:
Notes:
Kellogg et al. (1980) list Navicula minuscula as occurring in the Dry Valleys. Their illustration (pl. 1, fig. 29) may be the same taxon as the one we illustrate. Navicula minuscula is described as possessing radiate striae, a feature not found in our specimens from the Dry Valleys. Navicula molestiformis was transferred by Lange-Bertalot (in Rumrich et al. 2000) to the genus Craticula.
McMurdo Dry Valleys Waterbodies with Craticula molestiformis
- Adams Stream
- Aiken Creek
- Blue Lake
- Bowles Creek
- Canada Glacier
- Canada Stream
- Coast Lake
- Commonwealth Glacier
- Commonwealth Stream
- Delta Stream
- Garwood Stream
- Green Creek
- Harnish Creek Tributary
- Huey Creek
- Labyrinth Pond
- Lake Fryxell
- Lawson Creek
- Lost Seal Stream
- Many Glaciers Pond
- McKay Creek
- McMurdo Hut Ridge
- Miers Stream
- Onyx River
- Parera Pond
- Picture Pond
- Pond by Clear Lake
- Pond South of Nussbaum Riegel
- Priscu Stream
- Spaulding Pond
- Taylor Glacier
- Upland Pond
- Von Guerard Stream
- Wharton Creek
Original Type Description
| Author: | Hustedt 1949 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: | Lange-Bertalot, H. 2000 |
|---|
Citations
Index Nominum Algarum (INA):
- Original
- New Combination
- 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).
Publications (by year):
- Hustedt 1949. Explor. Parc Natl. Albert, 8:86, pl. 5, fig. 9. [citation 52(24)]
- Rumrich et al. 2000. Iconogr. Diatomol. 9: 101. [citation 115(100)]
- Sabbe et al. 2003. p. 242, figs 64,65,88,89. [citation 135(129)]
