| Name | Sphaerostephanos unitus var. mucronatus (Christ) Holttum |
| Authorship | (Christ) Holttum |
| Rank | Variety |
| Placed in | Sphaerostephanos unitus (Linnaeus) Holttum |
| Citation | 1982 Fl. Males., Ser. 2, Pterid. 1(5): 478 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Sphaerostephanos unitus var. mucronatus (Christ) Holttum |
| Identification made in | [no date] (5) |
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