| Name | Sphaerostephanos austerus (Brause) Holttum |
| Authorship | (Brause) Holttum |
| Rank | Species |
| Placed in | Sphaerostephanos |
| Citation | 1982 Fl. Males., Ser. 2, Pterid. 1(5): 502 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Sphaerostephanos austerus (Brause) Holttum |
| Identification made in | [no date] (4) |
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