Mann in Round, Crawford and Mann 1990      Category: Symmetrical biraphid
TYPE SPECIES: Luticola mutica (Kützing) Mann in Round, Crawford and Mann




Smallest to largest - 3 taxa sorted by maximum length

Image Credit: Sarah Spaulding, Megan Otu

CLASS: Bacillariophyceae
  ORDER: Naviculales
    FAMILY: Diadesmidaceae

  1. Valve linear-lanceolate to lanceolate with rounded, rostrate or capitate ends
  2. Stigma distinct
  3. Striae punctate
  4. Proximal raphe ends slightly deflected

Valves of Luticola have an expanded central area with a distinct stigma in the central area. The striae are distinctly punctate. Proximal raphe ends are slightly deflected unilaterally. Distal raphe ends are deflected to the same side as the proximal raphe ends. Living cells possess a single chloroplast.

Luticola is a widespread aerophilic genus, typical of soil and moss habitats. It includes the former Navicula mutica Kützing and its allies.

Cite This Page:
Spaulding, S., and Edlund, M. (2008). Luticola. In Diatoms of the United States. Retrieved April 26, 2018, from

Contributor: Sarah Spaulding | Mark Edlund - December 2008
Reviewer: Sam Rushforth - June 2010