| Name | Porphyrosiphon Kützing ex Gomont |
| Authorship | Kützing ex Gomont |
| Rank | Genus |
| Placed in | Microcoleaceae Strunecky, J. R. Johansen & Komárek |
| Contains | Porphyrosiphon notarisii Kützing ex Gomont Porphyrosiphon sp. |
| Citation | 1892 Ann. Sci. Nat., Bot. ser. 7, 15: 331 |
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