Tryblionella
W. Smith 1853 Category: Nitzschioid
TYPE SPECIES: Tryblionella acuminata W. Smith
Image Credit: Marina Potapova, Pat Kociolek
CLASS: Bacillariophyceae
ORDER: Bacillariales
FAMILY: Bacillariaceae
- Raphe excentric
- Valve face with longitudinal undulation
Valves are typically linear-lanceolate to elliptical in some species. Like Nitzschia, Tryblionella possesses an excentric raphe, positioned in a canal along one valve margin. The raphe systems within a frustule are positioned on opposite, in the manner of nitzschiod symmetry. The raphe canal is supported by fibulae. Valves have a distinct longitudinal undulation on the face.
Although Tryblionella was described in 1853, many recent floras include species within Nitzschia. Species within the genus Tryblionella occur in freshwater and marine waters.
Cite This Page:
Spaulding, S. (2011). Tryblionella. In Diatoms of the United States. Retrieved May 21, 2013, from http://westerndiatoms.colorado.edu/taxa/genus/tryblionella
Contributor: Sarah Spaulding - October 2011
Citations
Round, F.E. and Palmer, J.D. (1966). Persistent, vertical-migration rhythms in benthic microflora.: II. Field and laboratory studies on diatoms from the banks of the River Avon. Journal of the Marine Biological Association of the United Kingdom 46: 191-214. 10.1017/S0025315400017641
Smith, W. (1853). Synopsis of British Diatomaceae. John Van Voorst, London 1853. 89 pp., pls 1-31.
Witkowski, A., Lange-Bertalot, H., Kociolek, J.P., Ruppel, M., Wawrzyniak-Wydrowska, B., Bak, M. and Brzezinska, A. (2004). Four new species of Nitzschia sect. Tryblionella (Bacillariophyceae) resembling N. parvula. Phycologia 43(5): 579-595 . 10.2216/i0031-8884-43-5-579.1