Filaments are branched (although branches may be rare), including false branching and filaments united at base of structure.
![[Stigonema], X40. Photo: Phil Novis, Manaaki Whenua](/assets/Tools-And-Resources/Identification/algae/stigonema_phil40__FillMaxWzMwMCwyMDBd.jpg)
![[Oedogonium], Shag River, north Otago, X320. Photo: Otago Regional Council & Manaaki Whenua](/assets/Tools-And-Resources/Identification/algae/oedogonium320__FillMaxWzMwMCwyMDBd.jpg)