• DO sell nursery-raised or propagated material only; do not advertise or sell un-propagated wild plants under any circumstances, even when legally permitted to do so.
• DO try to propagate all rare or documented material and distribute it to recognized IOS Reference Collections.
• DO keep more than one clone of rare species, even self-fertile ones, for seed production.
• DO keep careful records of the origin of all stock, especially any wild collectors' number or locality data, and pass on the information to interested purchasers.
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