| Name | Hygrohypnum eugyrium (Schimper) Loeske |
| Authorship | (Schimper) Loeske |
| Rank | Species |
| Placed in | Hygrohypnum Lindberg |
| Contains | Hygrohypnum eugyrium var. mackayi (Schimper) Brotherus Hygrohypnum eugyrium var. occidentale (Cardot & Thériot) Grout Hygrohypnum eugyrium subsp. subeugyrium (Renauld & Cardot) Grout |
| Remarks | Reference to the basionym indirect (as "Br. eur." = Limnobium eugyrium Schimper, Bryol. Europ. 6: 73. 1855). |
| Citation | 1904 Verh. Bot. Vereins Prov. Brandenburg 46: 198 |
| Holdings | 98 Specimens held in the Harvard University Herbaria identified as Hygrohypnum eugyrium (Schimper) Loeske |
| Identification made in | [no date] (78), 2003 (1), 2004 (13), 2005 (1), 2016 (5) |