| Name | Acarospora hospitans f. albomarginata H. Magnusson |
| Authorship | H. Magnusson |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Acarospora hospitans H. Magnusson |
| GUID | urn:lsid:indexfungorum.org:names:371999 |
| Citation | 1929 Monogr. Acarospora 217 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Acarospora hospitans f. albomarginata H. Magnusson |
| Identification made in | 1960 (1) |