Image Archives

Morning glory Ipomoea nil

Asagao-36 kasen (36 varieties of the Japanese morning glory) (block-print) by Bankaen (1854)

Figure 22

Copyright 1998-2017 Yoshiaki Yoneda

"Tatsutaba-benigakisibori-fuurin-kumiageguruma-botan-dozaki Youryuuen"; Maple leaf and reddish persimmon spotted wind-bell composed windmill duplicated twice flower Youryuuen

The leaves are maple-like, having five points. The flowers have shallow splits. When maple is combined with cup flower, a cup flower with shallow splits is produced. This is called a windmill flower. Because the stamens and pistil become petal-like by the combined duplicated (double flower) gene to the windmill flower, the petal-like structures grow from inside the central cup. In the flower of this figure, the petal-like structures changed to bell-shaped. In this way, during the Kaei/Ansei era, many genes were combined, resulting in complicated flowers. However, this combination of genes is thought to have occurred by natural hybridization.

Slide No. 077

1 x 1

4 x 4

2 x 2

lens 8 x 8

16 x 16

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

Edited by Yuuji Tsukii (Lab. Biology, Science Research Center, Hosei University)