Spaulding, S.
(2011).
Tryblionella.
In Diatoms of North America.
Retrieved October 15, 2024, from https://diatoms.org/genera/tryblionella
Nitzschioid
Tryblionella
Raphe eccentric
Valve face with longitudinal undulation
Valves are typically linear-lanceolate to elliptic in some species. Like Nitzschia, Tryblionella possesses an eccentric raphe, positioned in a canal along one valve margin. The raphe systems within a frustule are positioned on opposite, in the manner of nitzschioid symmetry. The raphe canal is supported by fibulae. Valves have a distinct...