Fig. 2. Morphology of wild-type (A,D), gram (B,E), sty (C,F) and sty gram (G-I) flowers. In A-C the flowers are shown from the top revealing the structure of petals in the second whorl, flowers in E-I are in a side view and the lower part of the wild-type flower in D has been removed to show the stamens and the carpels (front view). The genetic background in A-C and G-I is Sippe 50 and JI75 in E-F. Notice enhanced severity of the mutant phenotypes in E-F compared to B,C. The arrowhead in C points to a stamenoid petal and the arrowheads in E and F point to petaloid sepals. Whorls with homeotically altered organs are numbered in G. In H whorled organisation is disrupted and filamentous organs are indicated by an asterisk. Severe reduction in organ number is illustrated in I. Scale bars: 5 mm.