Abstract:

  In this paper, the various mathematical methods applied to taxonomy are intro-

duced to readers.  Some approaches to the classification induced by statistics, graph

theory, information theory, fuzzy mathematics are discussed. An example of classifica-

tion (6 OTU’s with 8 characters) is given for convenience of discussion.  The original

data matrix of this example is obtained from 6 species in the family of Campanulaceae.