Tapering to fine colourless hairs; heteropolar.
Not tapered to fine colourless hairs; individual filaments isopolar.
![[Homeothrix], Waipori River, X160. Photo: Otago Regional Council & Manaaki Whenua](/assets/Tools-And-Resources/Identification/algae/homeothrix2__FillMaxWzMwMCwyMDBd.jpg)
![[Schizothrix] upper Clutha River, X12. Photo: Otago Regional Council & Manaaki Whenua](/assets/Tools-And-Resources/Identification/algae/schizothrix12__FillMaxWzMwMCwyMDBd.jpg)