Chlorella, Pediastrum;Ulotrichales, filamentous, and thallose plants, or coenocytic tubes, e.g.Ulothrix, Ulva, Enteromorpha;and Oedogoniales, e.g. the filamentous Oedogonium.

• 还有一些种类是丝状或多细胞的管状，例如丝藻属，石莼属，浒苔属和鞘藻属。