| Name | Cladonia furcata f. fissa (Flörke) Aigret |
| Authorship | (Flörke) Aigret |
| Rank | Forma |
| Placed in | Cladonia furcata (Hudson) Schrader |
| Holdings | 20 Specimens held in the Harvard University Herbaria identified as Cladonia furcata f. fissa (Flörke) Aigret |
| Identification made in | [no date] (20) |
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