| Name | Orthotrichum pusillum Mitten |
| Authorship | Mitten |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Orthotrichum |
| Citation | 1864 J. Linn. Soc., Bot. 8: 25 |
| Holdings | 31 Specimens held in the Harvard University Herbaria identified as Orthotrichum pusillum Mitten |
| Identification made in | [no date] (30), 1970 (1) |
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