-
Category
-
Class
Coscinodiscophyceae
-
Order
Orthosirales
-
Family
Orthoseiraceae
Sorted from smallest to largest by maximum length
Loading...
There are 0 results that match your criteria
Loading...
There are 0 results that match your criteria
Click species name to copy BioData reference to the clipboard
Links
-
Index Nominum Algarum
-
CAS
Spaulding, S.,
Edlund, M.
(2008).
Orthoseira.
In Diatoms of North America.
Retrieved June 07, 2023, from https://diatoms.org/genera/orthoseira
Centric
Orthoseira
- Carinoportulae one to several, near midvalve
- Spines marginal, variable in length
- Frustules linked by spines to form short chains
The frustules of Orthoseira are cylindrical and form filamentous colonies linked by marginal spines. The valve surface is flat and possesses one or more unique process, the carinoportula. Internally, the valves may (or may not) have internal 'caverns', positioned at the valve mantle interface. The marginal spines, if present, are...