| Name | Gymnostomum calcareum Nees & Hornschuch |
| Authorship | Nees & Hornschuch |
| Rank | Species |
| Placed in | Gymnostomum |
| Contains | Gymnostomum calcareum f. intermedium Podpera |
| Citation | 1823 Bryol. Germ. 1: 153 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Gymnostomum calcareum Nees & Hornschuch |
| Identification made in | [no date] (3) |
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