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Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Calycanthaceae

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1 Stamens 10-20; winter buds naked; tepals linear, reddish brown to yellowish-green
1 Stamens 5-6; winter buds with imbricate scales; tepals obovate to orbicular (at least the outer), pale to dark yellow
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