| Name | Dothidea betulina var. betulae-nanae (Wahlenberg) Fries: Fries |
| Authorship | (Wahlenberg) Fries: Fries |
| Rank | Variety |
| Placed in | Dothidea betulina (Fries) Fries: Fries |
| Citation | 1823 Syst. Mycol. 2(2): 555 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Dothidea betulina var. betulae-nanae (Wahlenberg) Fries: Fries |
| Identification made in | [no date] (1) |
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