Abstract
Phylogenetic trees are indispensable to understand the evolution of particular characters such as morphological ones. These days, molecular data or information on nucleotide sequences can easily give us reliable phylogentic trees. Therefore, discussion on morphological evolution should be based on molecular phylogenetic trees.Moreover, to reobserve morphological characteres from an evolutionary point of view based on molecular phylogenetic trees can help us to see them in different ways. Thus, molecular phylogentic trees can be useful for the sudies on morphological characters, themselves.
