- Bacillariophyta
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- Bacillariophyceae
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- Cymbellales
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- Gomphonemataceae
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- Gomphonema
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- Gomphonema acuminatum
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- Gomphonema acuminatum f. elongatum
Gomphonema acuminatum f. elongatum
(W. Smith) Skvortzow
- Omnidia : GAEG
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