| Name | Orthotrichum hortoniae Vitt |
| Authorship | Vitt |
| Rank | Species |
| Placed in | Orthotrichum |
| Citation | 1979 Bryologist 82: 2 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Orthotrichum hortoniae Vitt |
| Identification made in | [no date] (5) |
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