Figure 3. Maruba-tizimikuzyaku, Cordate pear leaves and wrinkled pear Flower
Copyright 1998-2017 Yoshiaki Yoneda
Because its corolla has wrinkles, this one is called Tizimizaki (wrinkled).  We can see petal-like structures from the center of the flower. These are petaloids of the stamens.  This plant is thought to have the wrinkled and petaloid pear gene.   
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1 x 1 (thumbnail images) : For indexing 2 x 2, 4 x 4, 8 x 8 : For viewing on monitor 8 x 8, 16 x 16 : For printing