| Name | Arthothelium gregarinum (Willey) Zahlbruckner |
| Authorship | (Willey) Zahlbruckner |
| Rank | Species |
| Placed in | Arthothelium A. Massalongo |
| GUID | urn:lsid:indexfungorum.org:names:377374 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Arthothelium gregarinum (Willey) Zahlbruckner |
| Identification made in | [no date] (2) |
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