| Name | Pterostylis tenuissima Nicholls |
| Authorship | Nicholls |
| Rank | Species |
| Placed in | Pterostylis |
| Citation | 1950 Victorian Naturalist 67: 46–48. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pterostylis tenuissima Nicholls |
| Identification made in | [no date] (1) |