Staurosira
Ehrenberg 1842 Category: Araphid
TYPE SPECIES: Staurosira construens Ehrenberg
Image Credit: Eduardo Morales
CLASS: Fragilariophyceae
ORDER: Fragilariales
FAMILY: Fragilariaceae
- Striae narrow, composed of small, round or somewhat elongated areolae
- Striae do not meet in central sternum
Staurosira valves are elliptical or cruciform in outline. In girdle view, the frustules are rectangular in shape. Cells often form colonies, joined by interlinking spines. The striae are narrow and composed of small, round areolae. Striae do not meet one another in the central sternum. Valves lack rimoportulae.
Staurosira includes the former Fragilaria construens and its relatives. In the light microscope it can be distinguished from Staurosirella based on the structure of the striae. The striae of Staurosira are composed of round areolae, while the striae of Staurosirella are lineolate.
Cite This Page:
Spaulding, S., and Edlund, M. (2009). Staurosira. In Diatoms of the United States. Retrieved May 18, 2013, from http://westerndiatoms.colorado.edu/taxa/genus/Staurosira
Contributor: Sarah Spaulding | Mark Edlund - January 2009
Citations
Manoylov, K.M., Morales, E.A. and Stoermer, E.F. (2003). Staurosira stevensonii (Bacillariophyta) a new species from Florida, USA. European Journal of Phycology 38: 65-71.
Morales, E.A., Novais, M.H., Chávez, G., Hoffman, L. and Ector, L. (2012). Diatoms (Bacillariophyceae) from the Bolivian Altiplano: three new araphid species from the Desaguadero River draining Lake Titicaca. Fottea 12(1): 41–58.
Morales, E.A., Manyolov, K.M. and Bahls, L.L. (2010). Three new araphid diatoms (Bacillariophyta) from rivers in North America. Proceedings of the Academy of Natural Sciences of Philadelphia 160(1): 29-46. 10.1635/053.160.0105
Siver, P.A., Hamilton, P.B., Stachura-Suchoples, K. and Kociolek, J.P. (2005). Diatoms of North America. The Freshwater Flora of Cape Cod. Iconographia Diatomologica 14: 1-463.