| Name | Polymeridium proponens (Nylander) R. C. Harris |
| Authorship | (Nylander) R. C. Harris |
| Rank | Species |
| Placed in | Polymeridium (Müller Arg.) R. C. Harris |
| Citation | 1993 [1991] Bol. Mus. Paraense Emilio Goeldi, n.s., Bot. sér. bot. 7(2): 637 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polymeridium proponens (Nylander) R. C. Harris |
| Identification made in | 2018 (1) |
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