| Name | Calothrix pulchra Kützing ex Bornet & Flahault |
| Authorship | Kützing ex Bornet & Flahault |
| Rank | Species |
| Placed in | Calothrix C. Agardh ex Bornet & Flahault |
| Citation | 1886 Ann. Sci. Nat., Bot. ser. 7, 3: 370 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Calothrix pulchra Kützing ex Bornet & Flahault |
| Identification made in | [no date] (1) |
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