| Name | Erysiphe diffusa var. elongata (U. Braun) U. Braun |
| Authorship | (U. Braun) U. Braun |
| Rank | Variety |
| Placed in | Erysiphe diffusa (Cooke & Peck) U. Braun & S. Takamatsu |
| Citation | 2012 Taxon. Man. Erysiphales 454 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe diffusa var. elongata (U. Braun) U. Braun |
| Identification made in | [no date] (1) |
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