Frickea
-
Category
-
ClassBacillariophyceae
-
OrderNaviculales
-
FamilyAmphipleuraceae
-
Type SpeciesFrickea lewisiana (Greville) Heiden in A. Schmidt et al. 1906 (= Navicula lewisiana Greville 1863)
-
ContributorCarrie Graeff - Mar 2011
Displaying 1 of 1 species
Sorted from smallest to largest by maximum length
Citations & Links
Citations
Links
-
Index Nominum Algarum
-
CAS
Cite This Page
Graeff, C. (2011). Frickea. In Diatoms of North America. Retrieved May 29, 2023, from https://diatoms.org/genera/frickea
Symmetric Biraphid
Frickea
- Distinct longitudinal ribs present
- Ribs extend to the helictoglossa, but do not fuse
- Rows of areolae present between ribs and raphe
- Large, T-shaped distal raphe fissures
- Large, T-shaped proximal raphe fissures
Species within Frickea have valves that are linear-lanceolate with bluntly rounded apices. The striae are comprised of relatively small, round areolae. Internally, a set of longitudinal ribs encloses the full length of the raphe and is continuous through the center of the valve. The longitudinal ribs extend to a linear helictoglossa but...