| Name | Pireella pycnothallodes (Müller Halle) M. Fleischer |
| Authorship | (Müller Halle) M. Fleischer |
| Rank | Species |
| Placed in | Pireella |
| Citation | 1917 Hedwigia 59: 313 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Pireella pycnothallodes (Müller Halle) M. Fleischer |
| Identification made in | [no date] (5) |
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