| Name | Phyllactinia guttata f. catalpae-syringifolae Thümen |
| Authorship | Thümen |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Phyllactinia guttata (Wallroth) Léveillé |
| Citation | 1881 Mycoth. Univ. Cent. 20: no. 1939 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Phyllactinia guttata f. catalpae-syringifolae Thümen |
| Identification made in | [no date] (2) |