| Name | Rhizocarpon disporum var. irriguum (Flotow) Zahlbruckner |
| Authorship | (Flotow) Zahlbruckner |
| Rank | Variety |
| Placed in | Rhizocarpon disporum (Nägeli ex Hepp) Müller Arg. |
| GUID | urn:lsid:indexfungorum.org:names:197245 |
| Citation | 1926 Cat. Lich. Univ. 4: 355 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Rhizocarpon disporum var. irriguum (Flotow) Zahlbruckner |
| Identification made in | [no date] (1) |