Sample 56, water sample collected from a small river called Chopro nadi (called by local people). The area is very near to Mathura tea garden of Alipurduar I. Good number of phytoplankton are observed under foldscope like Closterium, Spirogyra, Oscillatoria, Suriella, Pinnularia and Zygnema.

Oscillatoria

Unidentified diatom