REDUCTION IN INFLORESCENCE - THE ESSENCE AND ROLE OF REDUCTION IN THEEVOLUTION OF MODUL ORGANISMS

Different reduction phenomena in inflorescence are suggested to divide into two groups: reduction in pseudocyclic series (truncation and of element number in floral inits (FU)) and reduction outside pseudocycli c (deadlock fruncation and deadlock reduction of element number in FU) . The interpretation of reduction phenomenon as oligomerisation and ab breviation considered for zoological material is not effective for inf lorescence. They can be applied only to some parts of inflorescence th at have a high level of integrity, i.e. specialised FU. The interpreta tion of reduction as phenomenon leads the obligatory decrease in gener al number of flowers in inflorescence (sinflorescence) seems to be not well founded because of high compensation potential connected with pa racladium branching. In some cases the reduction of inflorescence elem ents in a secondary result of reorganisation of complex correlations t hat manage the morphogenesis in inflorescence or some of its elements. Sometimes reductions lead to very deep changes of inflorescence struc ture. Their correct typology and comparison with inflorescence of rela ted forms seems to be almost impossible without analysis of morphologi cal lines and possible ways and form of reduction processes.