Large pennate diatoms, cigar or boat shaped in valve view, rectangular in girdle view, with pronounced chambered striae. Two golden-brown chloroplasts per cell.
Pinnularia, Lake Tuakitoto, X640. Photo: Otago Regional Council & Manaaki WhenuaPinnularia, Tuakitoto outlet, X640. Photo: Otago Regional Council & Manaaki Whenua
Typical habitats
Some NZ species are common in muddy or wetland habitats
![[Pinnularia], Lake Tuakitoto, X640. Photo: Otago Regional Council & Manaaki Whenua Image](/assets/Tools-And-Resources/Identification/algae/pinnularia2__ScaleWidthWzEwMjRd.jpg)
![[Pinnularia], Tuakitoto outlet, X640. Photo: Otago Regional Council & Manaaki Whenua Image](/assets/Tools-And-Resources/Identification/algae/pinnularia__ScaleWidthWzEwMjRd.jpg)