ABSTRACT:
The present study is to investigate anatomical characters of Aponogeton natans (Linn.) Engl. & Krause. for its standardization. The required samples of different organs were cut and removed from the plant and fixed in FAA .The paraffin embedded specimens were sectioned with the help of rotary microtome and the section was stained with toludine blue. Microscopic descriptions of tissues were supplemented with the micrographs wherever necessary. The characters like flat midrib on the adaxial side with broadly “V” – shaped on the abaxial side and abaxial epidermis is comparatively thick with narrowly oblong cells are the characteristic features of Aponogeton natans(Linn.) Engl. & Krause. The present study on anatomical characters of Aponogeton natans (Linn.) Engl. & Krause.will be providing useful information in regard to its correct identity and help to differentiate from the closely related other species of Aponogeton.