| Name | Gymnostomum calcareum f. intermedium Podpera | 
| Authorship | Podpera | 
| Rank | Forma | 
| Placed in | Gymnostomum calcareum Nees & Hornschuch | 
| Citation | 1993 Bull. Buffalo Soc. Nat. Sci. 32 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gymnostomum calcareum f. intermedium Podpera | 
| Identification made in | [no date] (1) | 
