Abstract
A floristic study of epiphytic and epilithic diatoms of Kakita-gawa (Kakita River) springs, Shizuoka Prefecture, was carried out. Diatoms were examined using light microscope (LM) and electron microscopes (SEM and TEM). A total 62 taxa, belonging to 20 genera were found from this area. These taxa include Amphora ovalis Kiitz. that is new occurence in Japan, and A. liriope sp. nov. (nom. nud. ). Dominant taxa in the area were Achnanthes lanceolata, Diatoma mesodon, Melosira variance, Nitzschia dissipata, Navicula joubaudii and N. veneta.
