Edlund, M.,
Burge, D.
(2017).
Lacustriella.
In Diatoms of North America.
Retrieved November 21, 2024, from https://diatoms.org/genera/lacustriella
Symmetric Biraphid
Lacustriella
Valves lanceolate to elliptic
Apices acute
Terminal raphe fissures oppositely curved
Striae end at the face-mantle junction in an elongate areola
Species of Lacustriella are characterized by large valves with acute apices, uniseriate striae and terminal raphe fissures that are oppositely deflected. The valve outline ranges from lanceolate to elliptic. The raphe fissures continue onto the mantle. Striae are uniseriate and radiate, and terminate with an elongate areola. Striae do...