Spaulding, S.,
Edlund, M.
(2008).
Encyonema.
In Diatoms of North America.
Retrieved November 14, 2024, from https://diatoms.org/genera/encyonema
Asymmetric Biraphid
Encyonema
Dorsal margin arched
Distal raphe ends ventrally deflected
Stigmoids present or absent
Encyonema frustules are asymmetric to the apical axis and symmetric to the transapical axis. The dorsal margin is highly arched, while the ventral margin is straight or nearly straight. Distal raphe ends are ventrally deflected. Stigmoids may be present or absent. If a stigmoid is present, it is located on the dorsal side of the central...