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SEM image scalebar = 1 µm
Observations
| Observations: | S. Spaulding & R. Esposito |
|---|---|
| Length: | 6-20 µm |
| Width: | 2-4 µm |
| Striae: | 30-36 in 10 µm |
Description:
Valve linear, slightly gibbous in the center; poles somewhat swollen and rounded. Axial area small or indistinct. Central area wide, generally rounded, and often with a thickening of the valve beneath the central area (see Round et al., 1990 for SEM illustrations of this feature). Raphe straight with simple endings. Striae linear and composed of elongate puncta.
| Morphology: | Naviculoid |
|---|---|
| Distribution: | Widespread |
Notes:
The raphes of this diatom are often filled with silica, producing valves that, under the light microscope appear to lack a raphe system. This taxon is often seen in girdle view, chains of many cells linked together as filaments.
Waterbodies with Diadesmis contenta
- Aiken Creek
- Bowles Creek
- Canada Stream
- Delta Stream
- Green Creek
- Harnish Creek Tributary
- Lake Fryxell
- Von Guerard Stream
Original Type Description
| Author: | Grunow ex. V. Huerck 1885 |
|---|---|
| Length: | 7-10 µm |
| Width: | 2-2.5 µm |
| Striae: | 36 in10 µm |
Original Description:
Valve linéaire, renflée à la partie médiane et aux extrémités. Raphé entouré d?une zone hyaline notable, à peine un peu dilatée près du nodule median. Stries très-délicates, à peu près parallèles, environ 36 en 1 c.d.m. Longueur 0.7 à 1 c.d.m. Largeur 0.2 à 0.025 de c.d.m.
New combination
| Author: | Mann, D.G. 1990 |
|---|
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 1930. p. 277, pl. 458, fig. a [citation 51(21)]
- Kellogg et al. 1980. p. 180, Pl. 1, fig. 26. [citation 64(26)]
- Mann 1990. In Round et al. The Diatoms, pg. 666. [citation 104(83)]
