Book  (2021)  Page(s) 418-419.  Includes photo(s).
 
Hybrid Perpetuals .... 'Selma Dahlberg'.... In Norway identified as 'John Hopper'. .... Description..... According to the DNA studies 'Selma Dahlberg's nearest relative is 'Magna Charta' of the Hybrid Perpetual group. Their similarity index is 64,0%. The next closest sort is 'Climbing American Beauty' ... with a similarity index of 54,2%. Next are 'Jenny Melander', 'Captain Christy' and 'Captain Hayward'....their similarity indices are 52,0, 52,0 and 50,0% respectively.