| Name | Diatoma grandis W.Smith |
| Authorship | W. Smith [Scotland] |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Diatoma Bory |
| Contains | Diatoma grandis var. asymmetrica F.Meister Diatoma grandis var. clavigera F.Meister Diatoma grandis var. linearis (Grunow) Meister |
| Remarks | Created from Taxon Name Import: Diatoma grandis W.Smith |