
The water clover, Marsilea sp., is one of the common aquatic plants in closed water bodies of Bangladesh. This aquatic fern is also called “four-leaf clover” and locally known as “Susni or Susni Shak”. There are approximately 65 species of this genus distributed over the world (Wikipedia, 2013).
Classification …read more

Azolla is a free floating pterophyte. There are six species of genus Azolla. Off them, only one Azolla pinnata is found in various water bodies of Bangladesh. They are unattached and float with their leaves with above the water surface and roots under the water. It is native 
