| 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) |
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