| Name | Nitzschia sigma (Kützing) W. Smith |
| Authorship | (Kützing) W. Smith |
| Rank | Species |
| Placed in | Nitzschia Hassall |
| Contains | Nitzschia sigma var. curvula (Ehrenberg) Brun |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Nitzschia sigma (Kützing) W. Smith |
| Identification made in | [no date] (1) |
Copyright © 2013 The President and Fellows of Harvard College | Accessibility