| Name | Orthotrichum fenestratum Cardot & Thériot |
| Authorship | Cardot & Thériot |
| Rank | Species |
| Placed in | Orthotrichum |
| Citation | 1902 Proc. Wash. Acad. Sci. 4(5): 310-311 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Orthotrichum fenestratum Cardot & Thériot |
| Identification made in | [no date] (1) |