| Name | Dendrobium williamsonii J. Day & H. G. Reichenbach |
| Authorship | J. Day & H. G. Reichenbach |
| Rank | Species |
| Placed in | Dendrobium Swartz |
| Citation | 1869 Gard. Chron. 1869: 78 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Dendrobium williamsonii J. Day & H. G. Reichenbach |
| Identification made in | [no date] (2) |