检索表是植物分类中识别和鉴定植物不可缺少的工具,是根据法国拉马(Lamarck,1744-1829)二歧分类原则,把原来一群动植物相对的特征、特性分成对应的两个分支。再把每个分支中相对的性状又分成相对应的两个分支,依次下去直到编制到科、属或种检索表的终点为止。为了便于使用,各分支按其出现先后顺序,前边加上一定的顺序数字,相对应的两个分支前的数字或符号应是相同的。
绢蒿属植物多歧检索表 Multi-access key
首次系统全面记述了北京地区观赏植物上的蚜虫种类,共计9科64属148种,列出了蚜虫种类与寄主植物的系统检索表。
Altogether 148 species of 64 genera belong to 9 families on ornamental plants were recorded and narrated. Identification key for aphids and their hosts were made respectively.
结果:列出了枳壳、枳实原植物分类检索表、产地分布表和商品药材鉴定表。
Result: a taxonomic table, a distribution table and a commercial drug identification table are given.
结果:列出了栀子原植物分类检索表、产地分布表和商品药材鉴定表。
Result: Listing the table of classification of the origin of botany and distribution of producing region and identification of crude drugs of Gardenia.
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