| Name | Didymodon tophaceus f. ligulifolius (G. Roth) Margadant |
| Authorship | (G. Roth) Margadant |
| Rank | Forma |
| Placed in | Didymodon tophaceus (Bridel) Lisa |
| Citation | 1972 Lindbergia 1: 128 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Didymodon tophaceus f. ligulifolius (G. Roth) Margadant |
| Identification made in | [no date] (1) |
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