| Name | Microsphaera extensa var. curta U. Braun |
| Authorship | U. Braun |
| Rank | Variety |
| Placed in | Microsphaera extensa Cooke & Peck |
| Citation | 1982 Mycotaxon 15: 130 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Microsphaera extensa var. curta U. Braun |
| Identification made in | 1982 (1), 1985 (1), 1987 (1) |
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