| WebNameShort | |
| Fragilaria miniscula (Grunow in Van Heurck) Williams & Round 1987 |
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| Fragilaria radians (Kützing) Williams & Round 1987 |
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| Neofragilaria acidobiontica (Charles) Williams & Round 1987 |
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| Neofragilaria bicapitata (Mayer) Williams & Round 1987 |
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| Neofragilaria constricta (Ehrenberg) Williams & Round 1987 |
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| Neofragilaria lata (Cleve-Euler) Williams & Round 1987 |
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| Neofragilaria strangulata (Zanon) Williams & Round 1987 |
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| Neofragilaria virescens (Ralfs) Williams & Round 1987 |
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| Pseudostaurosira brevistriata (Grunow in Van Heurck) Williams & Round 1987 |
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| Pseudostaurosira pseudoconstruens (Marciniak) Williams & Round 1987 |
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| Pseudostaurosira robusta (Fusey) Williams & Round 1987 |
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| Pseudostaurosira zeilleri (Héribaud) Williams & Round 1987 |
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| Punctastriata linearis Williams & Round 1987 |
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| Punctastriata ovalis Williams & Round 1987 |
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| Staurosira elliptica (Schumann) Williams & Round 1987 |
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| Staurosirella africana (Hustedt) Williams & Round 1987 |
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| Staurosirella lapponica (Grunow in Van Heurck) Williams & Round 1987 |
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| Staurosirella leptostauron (Ehrenberg) Williams & Round 1987 |
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| Staurosirella pinnata (Ehrenberg) Williams & Round 1987 |
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