| Name | Mastocarpus stellatus (Stackhouse) Guiry |
| Authorship | (Stackhouse) Guiry |
| Rank | Species |
| Placed in | Mastocarpus Kützing |
| Citation | 1984 Taxon 33: 53 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Mastocarpus stellatus (Stackhouse) Guiry |
| Identification made in | [no date] (1) |