Clad istic Ana lysis of Phylogenetic Rela tionships among 7 Spec ies ofLac In sects( Homoptera: Tachardiidae) The Seedling Types of Gymnosperms and Their Evolutionary Relationships ON EVOLUTIONARY RELATIONSHIPS AMONG THREE LARIX TAXA IN CHINA:L.GMELINII (RUPR.)RUPR,L.OLGENSIS HENRY AND L. PRINCIPIS-RUPPRECHTII MAYR. Cloning and Phylogenetic Analysis of cDNA Sequences Coding for ARC1 and Exo70A1 in Brassica oleraces var. capitata L. Study on Numerical Chemotaxonomy of Cinnamomum in Hubei Province Analyses on the types of copy and evolutionary relationships of ITS sequence of Phormidium