World botany
societies, organizations
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research institutes
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museums
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herbaria
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botanical gardens, arboreta
floras
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geobotany
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systematics, evolution
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systematical and taxonomical databases
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morphology
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physiology, anatomy
large crossroads (botany, bio.)
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literature, scientific databases
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bookshops, publishers
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journals
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experimental botany
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software
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nature preservation
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plant names
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pictures, photographies
palynology
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paleobotany
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dendrology
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interestings