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We investigated also the morphology of non - glandular and glandular trichomes , their distribution on the vegetative and reproductive organs , as well as the histochemistry of the secreted products , with special focus on the terpenoidic fraction .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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