| Name | Cetraria islandica var. crispiformis Räsänen |
| Authorship | Räsänen |
| Rank | Variety |
| Placed in | Cetraria islandica (Linnaeus) Acharius |
| Citation | 1943 Ann. Bot. Soc. Zool.-Bot. Fenn. "Vanamo" 18(no. 1): 19 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cetraria islandica var. crispiformis Räsänen |
| Identification made in | 1976 (1) |
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