| Name | Paphiopedilum callosum (H. G. Reichenbach) Stein | 
| Authorship | (Reichenbach f.) Stein | 
| Rank | Species | 
| Placed in | Paphiopedilum Pfitzer | 
| Citation | 1892 Orchid.-Buch 457 | 
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Paphiopedilum callosum (H. G. Reichenbach) Stein | 
| Identification made in | [no date] (3) | 
