| Name | Phylliscum Nylander |
| Authorship | Nylander |
| Rank | Genus |
| Placed in | Lichinaceae |
| Contains | Phylliscum demangeonii (J. B. Mougeot & J. P. F. C. Montagne) Nylander Phylliscum sp. |
| Remarks | Ty[e Speceis: P. demangeonii (Moug. & Nestl.) Nylander (Collema demangeonii Moug. & Nestl.) |
| Citation | 1855 Mém. Soc. Imp. Sci. Nat. Cherbourg 3: 166 |