| Name | Microsphaera pusilla U. Braun | 
| Authorship | U. Braun | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Microsphaera Léveillé | 
| Citation | 1982 Mycotaxon 15: 124 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Microsphaera pusilla U. Braun | 
| Identification made in | 1982 (1) |