| Name | Cosmarium contractum var. pachydermum A.M.Scott & Prescott |
| Authorship | A. M. Scott & Prescott |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium contractum O.Kirchner |
| Remarks | Created from Taxon Name Import: Cosmarium contractum var. pachydermum A.M.Scott & Prescott |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cosmarium contractum var. pachydermum A.M.Scott & Prescott |
| Identification made in | [no date] (1) |