Botany Department, Marathwada University, Aurangabad, India
*Present address: Botany Department, Shivaji University, Kolhapur.
The genera of plants or animals, when grouped according to the number of species they possess, present a peculiar double logarithmic distribution, which cannot be explained by the assumption that the formation of additional species follows the probability rule. An additional assumption that the number of species in a genus represents the efforts of that genus to increase its genetic information, makes it possible for the logarithmic values of the number of species to be used to represent the total amount of genetic information in that genus. The resulting curve is then a single logarithmic one, representing the probability for any genus to possess a certain amount of information.
