Multiple unbranched, untapered, blue-green filaments lacking heterocytes, set tightly in parallel (sometimes twisted) within a common mucilaginous sheath.
Slow-flowing waters of moderate to good quality
![[Microcoleus], Moke Lake, X320. Photo: Otago Regional Council & Manaaki Whenua Image](/assets/Tools-And-Resources/Identification/algae/microcoleus__ScaleWidthWzEwMjRd.jpg)