Edlund, M.,
Burge, D.
(2017).
Lacustriella.
In Diatoms of North America.
Retrieved May 01, 2026, from https://diatoms.org/genera/lacustriella?x-craft-preview=409442409a997390693ff24c7010fd6f1c96fb56f8f091fa016a63de9a54aaccecpiqubknd
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...