| Name | Calicium pusillum (Acharius) Röhling |
| Authorship | (Acharius) Röhling |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Calicium Persoon |
| Citation | 1813 Deutschl. Fl. (Roehling), ed. 2, Kryptog. Gew. 2: 50 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Calicium pusillum (Acharius) Röhling |
| Identification made in | [no date] (1) |
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