Former Preferred Former Preferred symbol symbol symbol symbol a\325 af (anthocyanin-free) m m\1 a\332 ae (entirely anthocyaninless) m\345 M\3 a\337 ao (anthocyanin omitted) pg\329 pg a\342 ai (incomplete anthocyanin) yg\282 (yc) yg\2 an an yg\330 (ye) yg\3 yg\333 (yl) yg\4Carl D. Clayberg, chairman