| Name | Fenestella princeps f. alni Saccardo | 
| Authorship | Saccardo | 
| Rank | Forma | 
| Placed in | Fenestella princeps Tulasne & C. Tulasne | 
| Citation | 1883 Syll. Fung. 2: 326 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Fenestella princeps f. alni Saccardo | 
| Identification made in | [no date] (1) | 
