| WebNameShort | |
| Grammatophora islandica var. genuina Grunow 1862 |
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| Grammatophora islandica var. major Grunow 1862 |
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| Grammatophora maxima Grunow 1862 |
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| Grammatophora minima Grunow 1862 |
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| Grammatophora oceanica var. genuina Grunow 1862 |
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| Grammatophora oceanica var. major Grunow 1862 |
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| Grammatophora serpentina var. biundulata Grunow 1862 |
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| Grammatophora serpentina var. genuina Grunow 1862 |
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| Grammatophora serpentina var. hamulifera Grunow 1862 |
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| Grammatophora serpentina var. macilenta Grunow 1862 |
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| Himantidium arcus var. curta (curtum) Grunow 1862 |
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| Homoeocladia vidovichii (widowichii) Grunow 1862 |
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| Homoeocladia widowichii Grunow 1862 |
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| Meridion constrictum var. cellulis-imperfecta-divisis Grunow 1862 |
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| Meridion constrictum var. elongatum Grunow 1862 |
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| Meridion constrictum (constricta) var. cellulis imperfecte divisis Grunow 1862 |
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| Meridion constrictum (constricta) var. elongata Grunow 1862 |
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| Nitzschia acicularis var. closterioides Grunow 1862 |
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| Nitzschia affinis Grunow 1862 |
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| Nitzschia amphibia Grunow 1862 |
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