河南桂花品种的分类研究

Investigation on the Classification of Osmanthus Fragrans Lour.Cultivars in Henan

作者根据花色和开花习性将桂花品种分为金桂、银桂、丹桂和四季桂4个品种群,作为第1级分类标准,花的特征为第2级标准,叶的特征为第3级标准,花期的迟早为第4级标准。河南桂花有4个品种群、18个品种,其中15个品种为河南新记录。对每个品种作了特征记要。

The classification criterion of sweet osmanthus cultivars is discussed.According to the color of the flower and the habit and characteristics of flowering,they are divided into four groups: Thunbergii group,Odoratus group,Aurantiacus group and Semperflorens group.This is the primary criterion,also the first grade,flower characteristics are taken as the second criterion,leaf characteris- tics as the third,and time of flowering the fourth.In Henan province there are four groups and eigh- teen cultivars,among which fifteen cultivars are scored as new records.