| Name | Hypnum umbratum Hedwig |
| Authorship | Hedwig |
| Rank | Species |
| Placed in | Hypnum Hedwig |
| Citation | 1801 Sp. Musc. Frond. 263–264, pl. 67, f. 10–13. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hypnum umbratum Hedwig |
| Identification made in | [no date] (1) |
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