By M. TANAKA
Laboratory of Genetics, Kyoto University, Kyoto, Japan
All the amphidiploids listed in the following table were produced by the union of unreduced gametes, as reported in WIS Nos. 6 and 8. According to Dr. N. Hiratuka (unpubl.), ABD No. 22 is resistant to leaf rust (Puccinia recondita f. sp. tritici, strain No. 21B).
