| Name | Tolypothrix tenuis var. pygmaea Hansgirg |
| Authorship | Hansgirg |
| Rank | Variety |
| Placed in | Tolypothrix tenuis Kützing ex Bornet & Flahault |
| Citation | 1892-93 Arch. Naturwiss. Landesdurchf. Bohmen 8(4, Bot.): 37 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Tolypothrix tenuis var. pygmaea Hansgirg |
| Identification made in | [no date] (1) |