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Название книги: Contact-Poisonous Plants of the World
Автор(ы): M Rohde
Жанр: Учебник
Адрес книги: http://www.6lib.ru/books/Contact-Poisonous-Plants-of-the-World-194853.html
Active Principles
Plants make use of different techniques to scare away unwanted visitors. The plants in the guide below are marked with symbols to indicate the techniques:The most obvious defence mechanism a plant can use is mechanical, for example prickles, thorns, or barbs. Less visible but also purely mechanical are the sharp edges of certain grasses which can cause unpleasant cuts. Bamboos also belong to the botanical family of grasses, and some bamboo species bear thin bristles on the surface which can penetrate the skin and cause itching and irritation. There is an exceptional lot of mechanically active plants, and although injuries of the skin can cause secondary infections when dirt enters the human body, the mechanical principle is not subject of this document. Only the malicious and widespread Opuntia with its almost invisible, easily breaking off barbs is included in the list below.The chemical agents of some plants are poisons that can enter the skin without me
Название книги: Contact-Poisonous Plants of the World
Автор(ы): M Rohde
Жанр: Учебник
Адрес книги: http://www.6lib.ru/books/Contact-Poisonous-Plants-of-the-World-194853.html
Active Principles
Plants make use of different techniques to scare away unwanted visitors. The plants in the guide below are marked with symbols to indicate the techniques:The most obvious defence mechanism a plant can use is mechanical, for example prickles, thorns, or barbs. Less visible but also purely mechanical are the sharp edges of certain grasses which can cause unpleasant cuts. Bamboos also belong to the botanical family of grasses, and some bamboo species bear thin bristles on the surface which can penetrate the skin and cause itching and irritation. There is an exceptional lot of mechanically active plants, and although injuries of the skin can cause secondary infections when dirt enters the human body, the mechanical principle is not subject of this document. Only the malicious and widespread Opuntia with its almost invisible, easily breaking off barbs is included in the list below.The chemical agents of some plants are poisons that can enter the skin without me
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