| Name | Hysterographium fraxini f. catalpae-syringifoliae Saccardo |
| Authorship | Saccardo |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Hysterographium fraxini (Persoon: Fries) De Notaris |
| Citation | 1876 Mycoth. Veneta Cent. 8: no. 713 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hysterographium fraxini f. catalpae-syringifoliae Saccardo |
| Identification made in | [no date] (2) |
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