| Name | Cionothrix praelonga (G. Winter) Arthur |
| Authorship | (G. Winter) Arthur |
| Rank | Species |
| Placed in | Cionothrix |
| Citation | 1907 N. Amer. Fl. 7 (2): 124 |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Cionothrix praelonga (G. Winter) Arthur |
| Identification made in | [no date] (13) |