XVI International Botanical Congess

The transformation moduses of axled system of Amaranthaceae and Chenopodiaceae families were revealed.Transition from monotelic to polytelic, polymerization of floral zone, transformation of leaves into bracts in her limits, reduction of middle leaves, mezopodium, epipodium and hypopodium in cymes, division of sex in flowers, localization of male flowers in distal and female in proximal parts of inflorescences, transition to dioecy by reduction of male terminal or female bazal parts of floral unit, of male terminal floral unit or female zone of enrichment, reduction of perianth in female flowers and spread of the bracteoles taking the functions of assimilation, protection and dissemination of the fruit, illustrates that in this families general direction of evolution is considered to be the transition from hermaphroditic species to diclinous ones.