Spicaticribra

Johansen et al. 2008      Category: Centric
TYPE SPECIES: Spicaticribra kingstonii Johansen et al.

Skeletonema

 

Stauroforma

Image Credit: Rex Lowe

CLASS: Coscinodiscophyceae
  ORDER: Thalassiosirales
    FAMILY: Thalassiosiraceae

  1. Valve face flat to slightly domed
  2. Central areolae may be larger than marginal areolae
  3. Marginal fultoportulae present
  4. Areolae coarse

Spicaticribra has a flat, to slightly domed valve face, with a sloping mantle. Marginal fultoportulae are present and 1-3 rimportula. Striae are coarse, radial and straight, with some striae extending from the central valve to the margin, others extending only partially across the valve.

Species in the genus include S. kingstonii Johansen et al., S. kodaikanaliana Karthick and Kociolek and S. rudis (Tremarin et al.) Tuji et al.

Cite This Page:
Spaulding, S. (2015). Spicaticribra. In Diatoms of the United States. Retrieved July 04, 2015, from http://westerndiatoms.colorado.edu/taxa/genus/spicaticribra

Contributor: Sarah Spaulding - January 2015