(Kützing) Williams & Round 1986      Category: Araphid
TYPE SPECIES: Tabularia barbulata (Kützing) Williams & Round




CLASS: Fragilariophyceae
  ORDER: Fragilariales
    FAMILY: Fragilariaceae

  1. Valves with broad sternum
  2. Striae broad, shortened
  3. Apical porefield at each pole
  4. Rimoportula single on each valve

The species in Tabularia are robust and “needle-like”, with a broad sternum. The striae are relatively broad and composed of complex areolae. An apical porefield is present at each pole. Each valve possesses a single rimoportula, positioned near one pole.

Tabularia includes species that were formerly considered in Synedra, including S. tabulata and S. fasciculata. Members of the genus are found in marine and brackish waters, and other sites high in total dissolved solids. Some species are considered indicators of anthropogenic impact in inland waters.

Cite This Page:
Spaulding, S., and Edlund, M. (2008). Tabularia. In Diatoms of the United States. Retrieved April 24, 2018, from

Contributor: Sarah Spaulding | Mark Edlund - December 2008