1) Using cladistics methods, we studied both outer and osteological characters of 4 fish groups, Cyprinus, Barbodes, Schizothorax (Racoma) and Paracobitis, endemic to Erhai Lake.

2) On the Principles and methods of cladistics, the phylogenetic relationships in Roegneria of Poaceae were analysed in the present paper.

3) In the present paper, the cladistics method is used to analyze the phylogenetic relationship of 16 genera of Tinginae (Hemiptera:Heteroptera:Tingidae) from northern China.

4) Based on the principles and methods of cladistics , the phylogeny in Kengyilia of Poaceae is analysed in the present paper. Kengyilia is a monophyletic group.

5) Based on the principles and methods of cladistics, the phylogeny in Kengyilia of Poaceae is analysed in the present paper.

6) The phylogeny of the known 427 genera of Tenthredinoidea of world was reconstructed using the principle and methods of cladistics.

7) It provides also a phylogenetics literature database and information about cladistics -related software, some of which can be downloaded.

8) Abstract Making an attempt to apply the systematic methods of cladistics to plant taxonomy, the author discusses the systematic position of the genus Craigia W.