| Name | Pilotrichum evanescens (Müller Halle) Crosby |
| Authorship | (Müller Halle) Crosby |
| Rank | Species |
| Placed in | Pilotrichum |
| Citation | 1969 Bryologist 72: 326 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Pilotrichum evanescens (Müller Halle) Crosby |
| Identification made in | [no date] (2) |