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一、前言八仙花(Hydrangea macrophylla)原生于亚洲和南北美洲,是园林上重要的花木,其中有数种是日本产的,日本从奈良时代起就已有栽培。八仙花具有蓝色萼片组成的美丽的球状花序(八仙花美丽的着色部分不是花瓣,而是萼片),即所谓绣球型八仙花,这种类型的花在野生种中没有,绣球型八仙花的形成过程尚不明确,然而萼边型花序的数个种,例如罗马尼斯八仙花(H.macrophglla f.nomalis)、红八仙花(var.
I. Introduction Hydrangea macrophylla (Hydrangea macrophylla) native to Asia and North and South America, is an important garden flowers, of which several species are made in Japan, Japan since the Nara period has been cultivated. Hydrangea has the beautiful spherical inflorescences composed of blue sepals (the beautifully colored sections of Hydrangea are not petals but sepals), the so-called hydrangea-type Hydrangea, which is not found in wild species, Hydrangea The formation process is not clear, however, and several species of calyx type, such as H. macrophglla f. Nomalis, var.