3. Additional linkage studies in crosses of Florida teosinte with various genetic stocks show that translocation segments A and C are located at opposite ends of chromosome 4, as indicated by our previous data. Both show linkage with su and gl3. Segment B is located on chromosome 1 showing fairly close linkage with P and a slight indication of linkage with bm2. Segment D appears to be located on chromosome 9 and shows linkage with wx.