摘要： 采用二元分类法,对从日本引进的大花蕙兰(Cymbidium hybridum)28个品种建立形态学分类系统。结果表明,引进的大花蕙兰可分为两系(直立花葶系、下垂花葶系),五组(红色组、橙色组、黄色组、绿色组、白色组),三类(大花类、中花类、小花类),两型(圆唇型、尖唇型)。对17个大花蕙兰品种的41个性状指标进行数量聚类分析,表明花径和花色可分别作为一级、二级分类选择。二元分类和数量分类为大花蕙兰品种的引进和利用提供了科学合理的指导和依据。

关键词: 大花蕙兰, 二元分类, 数量分类

Abstract: Following the principles of dualistic classification,the pedicel posture introduced as the top grade classificatory standard in classification of Cymbidium hybridum. The ordinal grades were color of flower,the diameter of flower,the shape of labellum etc. The imported 28 Japanese cultivars were divided into two groups (vertical pedicel and pendent pedicel), five teams (red flower,orange flower,yellow flower,green flower,white flower), three types (large flower,medium flower,small flower), two forms (tapering labellum and smooth abellum). In numerical classification,41 characters of 17 cultivars were observed. The numerical values were used in clustering by UPGMA (Unweighted Pair Group Method with Arithmetic average). In this taxonomical system,the diameter were seemed as the first grade guide. And the flower color was the second. The the Cultivars Classification could provide a reasonable guidance for the introduction and exploitation of Cymbidium hybridum.

Key words: Cymbidium hybridum, Dalistic classification, Qantitative classification

中图分类号: 

• S682.31