Beginner's Guide to the Japanese Morning Glory (Ipomoea nil, Asagao in Japanese)

May 1999

_ The varied Japanese morning glory (Henka-asagao in Japanese), bred since the Edo era, is known as one of the traditional Japanese floricultural plants. The large-flowered morning glory is broadly cultivated as a hobby flower.
_ The present author crossed the morning glory (Ipomoea nil) with the common morning glory (Ipomoea purpurea) and thereby bred a new cultivariety called the ray white (Yojiro) morning glory. Thus, variations of the morning glory as a horticultural flower have increased. At present in Japan, Heavenly Blue (Ipomoea tricolor, Sorairoasagao in Japanese), which is distantly related to the morning glory, is also cultivated under the name Western morning glory.
_ In addition, various studies have further developed the genetic and physiological aspects of the morning glory.

_ I have handled these problems in the morning glories image database. At time went on, demand for a beginner's guide arose, because the morning glory has been used widely for the teaching of plant cultivation in elementary schools.
_ In August 1998, the project supervisor (Y. Yoneda) consulted with the Kodansha Company about digitizing Kodansha's Panorama Illustrated book entitled The Japanese Morning Glory, published in 1991.
_ Because the book has gone out of print already, the company approved the digitization.

_ In this book, the excellent and beautiful photographs taken by Mr. Y. Takemura help novices understand the Japanese morning glory as a first step. It seems very suitable for the purpose of this database to present such excellent images.

Yoshiaki YONEDA