| Name | Physcomitrium pyriforme var. serratum (Renauld & Cardot) H. A. Crum & L. E. Anderson |
| Authorship | (Renauld & Cardot) H. A. Crum & L. E. Anderson |
| Rank | Variety |
| Placed in | Physcomitrium pyriforme (Hedwig) Hampe |
| Citation | 1955 Bryologist 58: 6 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Physcomitrium pyriforme var. serratum (Renauld & Cardot) H. A. Crum & L. E. Anderson |
| Identification made in | [no date] (10) |
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