| Name | Atrichum altecristatum (Renauld & Cardot) Ireland bis |
| Authorship | (Renauld & Cardot) Ireland bis |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Atrichum |
| Holdings | 66 Specimens held in the Harvard University Herbaria identified as Atrichum altecristatum (Renauld & Cardot) Ireland bis |
| Identification made in | [no date] (55), 2003 (8), 2006 (2), 2018 (1) |