| Name | Plectonema tomasinianum var. gracile Hansgirg |
| Authorship | Hansgirg |
| Rank | Variety |
| Placed in | Plectonema tomasinianum Bornet ex Gomont |
| Citation | 1891 Sitzungsber. Königl. Böhm. Ges. Wiss., Math.-Naturwiss. Cl. 1891: 338 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Plectonema tomasinianum var. gracile Hansgirg |
| Identification made in | [no date] (2) |