| Name | Microthyrium microscopicum f. buxi-balearicae Saccardo | 
| Authorship | Saccardo | 
| Rank | Forma | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Microthyrium microscopicum Desmazières | 
| Citation | 1881 Mycoth. Veneta Cent. 15: no. 1481 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Microthyrium microscopicum f. buxi-balearicae Saccardo | 
| Identification made in | [no date] (1) | 
