| Name | Nitzschia angustata (W. Smith) Grunow |
| Authorship | (W. Smith) Grunow |
| Rank | Species |
| Placed in | Nitzschia Hassall |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Nitzschia angustata (W. Smith) Grunow |
| Identification made in | [no date] (1) |