| Name | Chantransia violacea f. expansa (H. C. Wood) Brand |
| Authorship | (H. C. Wood) Brand |
| Rank | Forma |
| Placed in | Chantransia violacea Kützing |
| Citation | 1909 Hedwigia 49: 116 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Chantransia violacea f. expansa (H. C. Wood) Brand |
| Identification made in | [no date] (1) |