Fig. 3.

Jaltomata sinuosa rotate flower development. a, b Stages A–B: Sepals initiate in an asymmetric fashion from the abaxial side and quickly fuse at the base. c Stage C: Five free petals develop around initiating stamen primordia. d, e Stage E: As stamens continue to mature, petals remain mostly free, but are fused at the base. f, g Stages F–G: Removal of mostly free petals reveals development of fused carpels. h, i Stage G: Opening of the corolla in 2.5–4-mm-wide flowers shows a fused petal base from just above the stamen attachment point to about mid-way up the length of the corolla (i), and “superficial fusion” of petals above the mid-point, via interlocking trichomes. Scale bars = 100 μm, and bud diameter provided in bottom right corner. s, sepal; p, petal; st, stamen; tri, trichome; fus, corolla fusion; fil, anther filament; g, gynoecium; sty, style