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Psammodictyon constrictum

(Gregory) D.G.Mann 1990      Category: Surirelloid
BASIONYM: Tryblionella constricta
SYNONYM(S): Nitzschia  constricta  (Gregory) Grunow in Cleve and Grunow 1880 

Psammothidium chlidanos

 

Psammothidium curtissimum

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