| Name | Weissia semidiaphana (Thériot) R. H. Zander |
| Authorship | (Thériot) R. H. Zander |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Weissia Hedwig |
| Citation | 1985 Monogr. Syst. Bot. Missouri Bot. Gard. 11: 197 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Weissia semidiaphana (Thériot) R. H. Zander |
| Identification made in | [no date] (2) |