(Krasske) Lange-Bert. and Krammer in Lange-Bert. and Metzeltin 1996
Credit: Megan Otu
Valves are very small
Margins triundulate
Striae parallel
Valves are very small, less than 12 µm in length. The margins of the valves are distinctly triundulate with capitate apices. Striae are parallel and relatively broad.