Decussata may refer to:
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''Decussata'' (alga), a diatom genus in the family
Naviculaceae
Naviculaceae is a diatom family in the order Naviculales.
Naviculaceae are typically composed of lineate areolae, one of the many forms of areolae. Some of the other areolae are punctate (''Gomphoneis'') and loculate (''Diploneis''). These can ...
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''Decussata'' (butterfly), a butterfly genus in the family Lycaenidae
{{genus disambiguation