Spaulding, S.,
Edlund, M.
(2008).
Didymosphenia.
In Diatoms of North America.
Retrieved September 07, 2024, from https://diatoms.org/genera/didymosphenia
Asymmetric Biraphid
Didymosphenia
Valves large and robust
Stigmata one to several
Apical porefield at footpole, large
Frustules of Didymosphenia are asymmetric to the transapical axis and symmetric to the apical axis (although some populations may be slightly to strongly asymmetric to the apical axis). One to several stigmata are present, a feature that may be variable within a given species. A large apical porefield is present at the footpole. The...