| Name | Callithamnion halliae Collins |
| Authorship | Collins |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Callithamnion Lyngbye |
| Remarks | Created from Taxon Name Import: Callithamnion halliae Collins |
| Citation | 1900 Phycoth. Bor.-Amer. no. 698 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Callithamnion halliae Collins |
| Identification made in | [no date] (10) |
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