Abstract: In this paper , some systematical problems, including the classification , differentiation , and systematic relationships between genera of Tamaricaceae, are discussed . Tamaricaceae , together with the family Frankenaceae as sister group , is positioned in the Caryophyllales or Caryophyllidae of the Angiospermae. Based on morphological and molecular evidences , we give support to include Hololachna within the genus Reaumuria , and the establishment of the genus Myrtama Ovcz . & Kinz . Tamaricaceae is composed of two tribes: Trib . Reaumurieae Niedenzu and Trib . Tamariceae Niedenzu ( including Tamarix ,Myrtama and Myricaria) , with the genus Tamarix as evolutionary intermediate .

Key words: Tamaricaceae