Image Archives

Morning glory Ipomoea nil (= Pharbitis nil)

Katatumuriba, Snail leaf, Hederacea leaf, side-reduced, dragonfly (coH, sr, dg)

Copyright 1998-2017 Yoshiaki Yoneda

When a dragonfly nose leaf is combined with a Hederacea leaf, a snail's head-like part could be produced if the extension of side lobes is suppressed to an extreme by the side-reduced gene. The main lobe corresponds to the snail's shell, so the whole leaf is associated with a creeping snail extending its head from the shell. So it is named snail leaf by the writer. The author considers that leaf form variations of the mutant morning glory are useful for the study of morphogenesis of a leaf, and the unique leaf form of the Ivyleaf morning glory, Ipomoea hederacea, is suitable as a material in such study.

Slide No. 128

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)