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LM image scalebar = 10 µm = 38 pixels
SEM image scalebar = 5 µm
Observations
| Observations: | Sarah Spaulding and Rhea Esposito |
|---|---|
| Length: | 26-43 µm |
| Width: | 8-10 µm |
| Striae: | 5-7 in 10 µm |
Description:
Valve broadly linear with rounded ends. Axial area distinct. Central area transverse and rounded; typically with one or two striae surrouding the sub-fascia. Raphe curved; median raphe endings bent to one side; distal endings sickle-shaped. Thick striae, usually parallel, sometimes slightly convergent at the ends or slightly radiate at the center.
| Morphology: | Naviculoid |
|---|---|
| Distribution: | Widespread |
Autecology:
Notes:
Although Pinnularia is reported to be abundant in aerophilic habitats worldwide, this study provided a new distribution record for the Dry Valleys. Both Patrick and Reimer (1966) and Krammer and Lange-Bertalot (1985) give much larger sizes for this species (up to 110 µm in length). However, Krammer (1992) reports a size range to 28-55 µm in length, a value closer to specimens encountered in the McMurdo Dry Valleys.
McMurdo Dry Valleys Waterbodies with Pinnularia borealis
- Adams Stream
- Aiken Creek
- Bowles Creek
- Canada Stream
- Commonwealth Stream
- Delta Stream
- Green Creek
- Harnish Creek Tributary
- Huey Creek
- Lost Seal Stream
- Von Guerard Stream
Original Type Description
| Author: | Ehrenberg 1843 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: | Ehrenberg 1843 |
|---|
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).
Publications (by year):
- Patrick and Reimer 1966. p. 618, pl. 58, fig. 13 [citation 93(74)]
- Krammer and Lange-Bertalot 1985. p. 405, fig. 177, fig. 1-4 [citation 93(75)]
