rps10b-1 floral organ phenotypes. (a-d) Increased variation in floral organ number. Wild-type flower with four (a), rps10b-1 flower with five petals (b). Developing siliques of wild type (c) with two carpels, of rps10b-1 (d) with three carpels. (e,g,h) Defective organ separation. Fusion of two stamen filaments indicated by black arrow in (e). Fusion of stamen filaments to the gynoeceum marked by arrowheads in (g,h). (f,g,h) Mis-specification of organ identity. Stamens in (f, white arrow), (g) and (h) showing carpelloid features. Scale bar in (h) for (a-h): 2 mm.