In the early 1890s, J. H. Maiden considered that kino exudates might be a useful character to consider alongside structural features in grouping Eucalyptus species. He found that although some types of kino supported morphological analyses, most did not and they were not as useful as he had hoped. His commitment to the concept of variability caused him to oppose his former colleagues R. T. Baker and H. G. Smith in their use of essential oils as an over-riding characteristic in Eucalyptus taxonomy and higher classification. When their work was rebutted in the late 1920s by the discovery that differences in the oils included intra-specific polymorphisms, the concept of phyto-chemical classification went into abeyance, and Maiden's insightful, but cautious, pioneering work was also forgotten.

中文翻译：

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19 世纪植物系统学中植物化学的探索：Joseph Henry Maiden 和 Eucalyptus Kinos

在 1890 年代初期，JH Maiden 认为，在对桉树物种进行分组时，kino 渗出液可能是与结构特征一起考虑的有用特征。他发现虽然某些类型的进挪支持形态学分析，但大多数不支持，而且它们没有他希望的那么有用。他对可变性概念的承诺使他反对他的前同事 RT Baker 和 HG Smith，他们将精油用作桉树分类学和更高分类中的首要特征。当他们的工作在 1920 年代后期因发现油中的差异包括种内多态性而遭到反驳时，植物化学分类的概念被搁置，而 Maiden 富有洞察力但谨慎的开创性工作也被遗忘了。