浙江省薯蓣科植物的数量分类研究

中国科学院大学学报

浙江省薯蓣科植物的数量分类研究

奚镜清, 毛宗秀, 杨建伟, 奚可椿

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1990-11-10 发布日期:1990-11-10
通讯作者: 奚镜清

A Study on Numerical Taxonomy of Dioscoreaceae Plants in Zhejiang Province

Xi Jing-Qing, Mao Zong-Xiu, Yang Jian-Wei, Xi Ke-Chun

Received:1900-01-01 Revised:1900-01-01 Online:1990-11-10 Published:1990-11-10
Contact: Xi Jing-Qing

摘要/Abstract

摘要：

以浙江省薯蓣科全部植物——薯蓣属17种和1变种为18个分类单位，以形态为主兼顾组织结构、化学成分及地理分布，列出72项性状，对这些植物进行了数量分类。用最短距离法、最长距离法、中间距离法甲、中间距离法乙、重心法、类平均法以及离差平方和法的系统聚类，探索了这些植物彼此间的亲缘关系，认为以前对它们的经典分类处理基本合理。由于”薯莨”性状明显特殊，建议成立新组——薯莨组。

关键词: 薯蓣科, 薯蓣属, 浙江省, 数量分类, 薯茛, 薯茛组

Abstract:

The present paper deals with the numerical taxonomical study of Dioscreaceae

plants all from Zhejiang Province. In the only genus Dioscorea 17 species and 1 variety were

used as 18 operational units (OTU). Among 72 characters used for analysis 60 are morpho-

logical, 5 anatomical, 4 chemical and 3 geographical. The Gower's Coefficient of similarity

was used for showing quantitative index of similarity among the OTUs. By means of methods

of systematic cluster: shortest distance, longest distance, middle distance A (β=0), middle

distance B(β=1／4), centre of gravity, class average and square sum of deviations, dendrog-

rams from every method were obtained respectively. All calculations and dendrogramsmaking

were treated on IBM computer with the program by BASIC language.

The result shows that the classical taxonomy is reasonable on the whole, but none of 7

dendrograms is identical with the classical taxonom and only the middle distance B(β=1／4)

is the most similar to that. Based upon the relationships among these plants as shown in both

classical and numerical taxonomy, 5 OTUs are chosen for discussion as follows:

1. Dioscorea collettii Hook. f. var. hypoglauca (Palibin) Pei et Ting and D. zingiberen-

sis C. H. Wright would be better still maintained together in Sect. Stenophora Uline as classi-

cal method treated according to their horizontal and diosgenin-containing rhizomes and mon-

ocolpate pollen grains.

2. D. bulbifera L. and D. pentaphylla L. both have vertical, turbinate and no diosgenin-

containing rhizomes, left-twining stems and dicolpate pollen grains, but the latter is rema-

rkable for its compound leaves, so they would be better maintained in Sect. Opsophyton UL-

ine and Sect. Lasiophyton Uline respectively as classical taxonomy treated.

3. D. cirrhosa Lour. has been included in Sect. Enantiophyllum Uline, but its rhizomes

containing abundant tannin, ligneous stems and narrowly ovate to lanceolate, coriaceous leaves

are quite different from those of other member in the section. Therefore it is suggested that

this species be separated from the original section and a new section be established for it.

Key words: Dioscoreaceae, Dioscorea, Zhejiang Province, numerical taxonomy, Dioscorea cirrhosa Lour

奚镜清, 毛宗秀, 杨建伟, 奚可椿. 浙江省薯蓣科植物的数量分类研究[J]. 中国科学院大学学报.

Xi Jing-Qing, Mao Zong-Xiu, Yang Jian-Wei, Xi Ke-Chun. A Study on Numerical Taxonomy of Dioscoreaceae Plants in Zhejiang Province[J]. .

[1]	沈泽昊,张新时,金义兴. 三峡大老岭植物区系的垂直梯度分析[J]. 中国科学院大学学报, 2001, 39(3): 260-268.
[2]	熊治廷, 陈心启, 洪德元. 中国萱草属数量分类研究[J]. 中国科学院大学学报, 1997, 35(4): 311-316.
[3]	徐克学. 分支分类的一种计算方法--最大同步法[J]. 中国科学院大学学报, 1989, 27(3): 232-239.
[4]	陈守良, 徐克学. 应用数量分类探讨鹅观草属的归属问题[J]. 中国科学院大学学报, 1989, 27(3): 190-196.
[5]	舒璞. 中国薯蓣属花粉形态的初步研究[J]. 中国科学院大学学报, 1987, 25(5): 357-365.
[6]	王景祥. 试论浙江省森林植物区系[J]. 中国科学院大学学报, 1986, 24(3): 165-176.
[7]	路安民, 张志耘. 裂瓜属的研究[J]. 中国科学院大学学报, 1985, 23(2): 106-120.
[8]	秦慧贞, 张美珍, 凌苹苹, 丁志遵, 窦方平. 中国薯蓣属细胞分类的研究——染色体数与该属起源和演化[J]. 中国科学院大学学报, 1985, 23(1): 11-18.