Pseudostaurosira
Williams and Round 1988 Category: Araphid
TYPE SPECIES: Pseudostaurosira brevistriata Williams and Round
Image Credit: Eduardo Morales
CLASS: Fragilariophyceae
ORDER: Fragilariales
FAMILY: Fragilariaceae
- Striae uniseriate
- Spines present
- Areolae elliptical
Frustules of Pseudostaurosira form chains with frustules linked valve face to valve face. Frustules rectangular in girdle view. Striae are uniseriate, composed of a few (usually not more than 4) elliptical areolae. Spines are present on the valve margin and may be branched.
Pseudostaurosira includes the former Fragilaria brevistriata and is distinguished by the structure of the striae, rather than the shape of the valve face.
Cite This Page:
Spaulding, S., and Edlund, M. (2009). Pseudostaurosira. In Diatoms of the United States. Retrieved May 21, 2013, from http://westerndiatoms.colorado.edu/taxa/genus/Pseudostaurosira
Contributor: Sarah Spaulding | Mark Edlund - January 2009
Reviewer: Sam Rushforth
Citations
Cejudo-Figueiras, C., Morales, E.A., Wetzel, C.E., Blanco, S., Hoffmann, L., and Ector, L. (2011). Analysis of the type of Fragilaria construens var. subsalina (Bacillariophyceae) and description of two morphologically related taxa from Europe and the United States. Phycologia 50:(1) 67-77.
Edlund, M.B., Morales, E.A. and Spaulding, S.A. (2006). The type and taxonomy of Fragilaria elliptica Schumann, a widely misconstrued taxon. In: Witkowski, A. (Ed.). Proceedings of the 18th International Diatom Symposium. Miedzyzdroje, Poland. pp 53-59. Biopress Limited, Bristol, England.
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. (2005). Observations of the morphology of some known and new fragilarioid diatoms (Bacillariophyceae) from rivers in the USA. Phycological Research 53: 113-133.
Morales, E.A. and Edlund, M.B. (2003). Studies in selected fragilarioid diatoms (Bacillariophyceae) from Lake Hovsgol, Mongolia. Phycological Research 51: 225-239.
Morales, E.A. (2001). Morphological studies in selected fragilarioid diatoms (Bacillariophyceae) from Connecticut waters (U.S.A.). Proceedings of the Academy of Natural Sciences of Philadelphia 151: 105-120.