| Name | Porphyra vulgaris var. umbilicata (C. Agardh) Naccari |
| Authorship | (C. Agardh) Naccari |
| Rank | Variety |
| Placed in | Porphyra vulgaris C. Agardh |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Porphyra vulgaris var. umbilicata (C. Agardh) Naccari |
| Identification made in | [no date] (1) |
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