| Name | Sphaerozosma excavatum var. subquadratum N. Carter |
| Authorship | N. Carter |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Sphaerozosma excavatum Ralfs ex Ralfs |
| Remarks | Created from Taxon Name Import: Sphaerozosma excavatum var. subquadratum N. Carter |
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