| Name | Collemopsidium Nylander |
| Authorship | Nylander |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Xanthopyreniaceae Zahlbruckner |
| Contains | Collemopsidium halodytes (Nylander) M. Grube & B. D. Ryan Collemopsidium heardense (C. W. Dodge & E. D. Rudolph) Øvstedal Collemopsidium pyrenuloides C. W. Dodge & E. D. Rudolph Collemopsidium sp. |
| Remarks | Type Species: C. iocarpum (Nylander) Nylander (Pyrenopsis iocarpa Nylander). |
| Citation | 1 Jan 1881 Flora 64(1): 6 |