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Fig. 4 | EvoDevo

Fig. 4

From: Heterochronic developmental shifts underlie floral diversity within Jaltomata (Solanaceae)

Fig. 4

Jaltomata calliantha campanulate flower development. a Stage A: Free sepals extend through the growth of a basal primordium to form a lower fused tube. b Stage C: Opening of partially fused sepals reveals initiation of petal, followed by stamen, primordia. c Stage C: Free petals and stamens grow prior to initiation of the carpel primordia. df Stages D–E: Free petals develop trichomes on the adaxial side, becoming slightly fused just above the stamen attachment point during stamen thecae emergence. g, h Stages F–G: fused carpel development. i Stage G: Petals remain only slightly fused above the stamen filament in 3.5 mm-wide flowers. Scale bars = 100 μm, and bud diameter is also provided in bottom right corner. s, sepal; p, petal; st, stamen; tri, trichome; fus, corolla fusion; fil, anther filament; g, gynoecium; sty, style

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