Diversity of Fern Plants on the Track to Gitgit Waterfall, Sukasada, Buleleng

Study on the diversity of ferns has been carried out along the route to the Gitgit waterfall Sukasada Buleleng. The research was conducted in January-March 2019. The method used in this study was the line transects method, 2 meters wide and 3 sub-lanes with 243 meters each. So, the research area is 1,458 m2 (2 m x 3 x 243 m). Identification of ferns based on leaf morphological characters, leaf arrangement on stems, stem shape and color, sporangium position. The results showed that in the Gitgit waterfall area, there were 22 species of ferns belonging to 13 genera and 10 families. The most dominant species found were from the Pteridaceae family. Four species of ferns were found relatively dominant based on their importance value on the track to the Gitgit Waterfall, namely Adiantum philipense, Adiantum raddianum, Deparia petersenii and Pteris longipinnula. Based on the moderate diversity index (Shanon-Wiener index 2.97) and the high evenness index (evenness index 0.96), the ecological condition of the track to Gitgit waterfall is good.