Fig. 2.Scanning electron microscopy of a female flower in anthesis of Jatropha curcas. a) Panoramic view of the female flower in anthesis; it can be observed that the petal base is full of
trichomes. b) Pair bifurcate stigma. The blue arrows indicate a pair of stigma. c) Stigma with pollen grains. The yellow arrows indicate grains of pollen. d) Base of the style. The dotted
yellow lines indicate convergence point of the stigma pair. e) Pollen grain; hexagonal or spherical shapes can be distinguished. The red arrow indicates verrucae structure and the yellow
line the hexagonal shapes of these. f) Closeup of a grain of pollen; the dotted red circles indicate the distribution patterns.