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| Amphicampa matrix (A. Berg) Cleve-Euler 1953 |
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| Asterionella gracillima var. acaroides (Lemmermann) Cleve-Euler 1953 |
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| Asterionella gracillima f. circinalis Cleve-Euler 1953 |
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| Asterionella gracillima var. genuina Cleve-Euler 1953 |
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| Asterionella gracillima var. inflata (Grunow in Van Heurck) Cleve-Euler 1953 |
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| Asterionella gracillima var. ralfsii (W. Smith) Cleve-Euler 1953 |
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| Asterionella gracillima f. sol Cleve-Euler 1953 |
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| Asterionella gracillima var. subtilis (Grunow in Van Heurck) Cleve-Euler 1953 |
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| Asterionella gracillima f. tabellarioides Cleve-Euler 1953 |
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| Diatoma elongatum var. angustum Cleve-Euler 1953 |
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| Diatoma elongatum var. hybridium (Grunow in Van Heurck) Cleve-Euler 1953 |
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| Diatoma elongatum f. normalis (Kützing) Cleve-Euler 1953 |
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| Diatoma elongatum var. pectinale (Kützing) Cleve-Euler 1953 |
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| Diatoma elongatum f. typica Cleve-Euler 1953 |
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| Diatoma elongatum f. vanheurckii (Cleve-Euler) Cleve-Euler 1953 |
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| Diatoma elongatum f. vanheurckii Cleve-Euler 1953 |
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| Diatoma hiemale var. (alpha) genuinum (Grunow) Cleve-Euler 1953 |
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| Diatoma hiemale (hyemale) var. anceps (Ehrenberg) Cleve-Euler 1953 |
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| Diatoma hiemale (hyemale) f. curta (Grunow) Cleve-Euler 1953 |
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| Diatoma hiemale (hyemale) f. genuina (Mayer) Cleve-Euler 1953 |
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