| Name | Hypnum cylindricarpum Müller Halle |
| Authorship | Müller Halle |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Hypnum Hedwig |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Hypnum cylindricarpum Müller Halle |
| Identification made in | [no date] (3) |
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