DENDROLOGY AND SOCIETY
HERBARIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Solution used for making herbarium Wet (Wet collection) 1. alcohol 2. Glycerin 3. FAA 4.spirtus
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1, 2, 3 are correct
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1 and 3 are correct
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2 and 4 are correct
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4 course is correct
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all true
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Explanation:
Detailed explanation-1: -Preservation method Specimens are stored in Copenhagen Solution: 70% industrial methylated spirit, 28% distilled water and 2% glycerol. The alcohol is a preservative and the glycerol prevents specimens becoming too brittle (formaldehyde solution is no longer used as a preservative due to associated health risks).
Detailed explanation-2: -Specimen samples are pressed in a plant press and dried on a plant dryer. Each specimen sample should consist of a stem with attached leaves and, if at all possible, flowers and/or fruits. The roots of herbaceous plants should also be included.
There is 1 question to complete.