| Name | Leptothyrium protuberans f. helianthemi Saccardo |
| Authorship | Saccardo |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Leptothyrium protuberans (Léveillé) Saccardo |
| Citation | 1881 Mycoth. Veneta Cent. 16: no. 1536 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Leptothyrium protuberans f. helianthemi Saccardo |
| Identification made in | [no date] (1) |
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