Japonica [1896] | | |―Larkspur [1906] | | |―Thyme [1915] | | | |―Hansa [1921] | | | |―Prusa [1928] | | |―Celsia [1917] | | |―Stipa [1930] | | |―Roma [1943] | |―Aprille [1909] | |―April Shower [1918] | |―Yanwath [1928] | |―Roman Spring [1936]