地衣二元性及其概念的双重理解与思考

Understanding and thinking of concept and definition of "Lichen

本文简短回顾人类对地衣的认识过程之后，认为从地衣二元性（地衣的菌藻共生联合）和从地衣一元性（地衣的真菌本质）不同角度理解地衣都是正确的，被称之为“地衣概念的双重理解”。但作为地衣的定义似乎只能主要从地衣的二元性概念去表达，并分析其原因。对现在使用的地衣定义提出厂某些看法与修改意见。

A new definition of lichen is proposed in the Present paper. That is 'a lichen is a symbiotic association of a fungus and an alga or a cyallobacterium resulting in a stable complex-thallus of specific structure, its essence and scientific name are represented by the mycobiont.