Sepal axil secondary flower phenotype in ap1 mutants. Vertical view of a wild type flower in (A), lateral view of a wild type flower in (B), and top view of a wild type inflorescence in (C). Vertical view of an ap1-1 flower in (D), lateral view of an ap1-1 flower in (E), and top view of an ap1-1 inflorescence in (F). Vertical view of an ap1-4 flower in (G), lateral view of an ap1-4 flower in (H), and top view of an ap1-4 inflorescence in (I). Note ectopic sepal axil secondary flowers in ap1 mutants.