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| Gyrosigma aestuarii (Brebisson in Kutzing) Griffith & Henfrey 1856 |
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| Gyrosigma naviculaceum (Brebisson) Griffith & Henfrey 1856 |
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| Gyrosigma fasciola (fasciolum) (Ehrenberg) Griffith & Henfrey 1856 |
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| Gyrosigma decorum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma delicatulum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma distortum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma elongatum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma formosum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma intermedium (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma intermedium var. nubecula (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma lacustre (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma littorale (litorale) (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma macrum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma obscurum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma prolongatum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma quadratum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma rigidum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma speciosum (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma spenceri (spencerii) (W. Smith) Griffith & Henfrey 1856 |
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| Gyrosigma strigilis (strigile) (W. Smith) Griffith & Henfrey 1856 |
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