| Name | Celtica gigantea (Link) F. M. Vázquez & Barkworth |
| Authorship | (Link) F. M. Vázquez & Barkworth |
| Rank | Species |
| Placed in | Celtica F. M. Vázquez & Barkworth |
| Citation | 2004 Bot. J. Linn. Soc. 144: 491 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Celtica gigantea (Link) F. M. Vázquez & Barkworth |
| Identification made in | [no date] (2) |