Figure 2

Longitudinal sections (L.S) of flower buds at different developmental stages. (A–E) are the sections of staminate flowers of male plant, (F–J) are the sections of pistillate flowers of female plant, (K–O) and (P–T) are the sections of hermaphrodite (GyM-H) and pistillate (GyM-F) flowers of gynomonoecious (GyM) plant respectively. p: Petals, s: sepals, c: carpels, st: stamens, rst: rudimentary stamens, o: ovary. Scale bars are 500 μm in A, 1 mm in B, C, F, G, H, K, L, P and Q, and 2 mm in D, E, I, J, M, N, O, R, S and T.