| 11. | The inconspicuously three-lobed perianth consists of three connate tepals.
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| 12. | The perianth tube is 2-3.5 cm long/
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| 13. | The species with a perianth have up to five tepals.
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| 14. | Flowers with spiral perianths tend to also be those with undifferentiated perianths.
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| 15. | Flowers with spiral perianths tend to also be those with undifferentiated perianths.
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| 16. | Mature sporophytes develop from within a large perianth with three distal folds.
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| 17. | In fruit, the perianth becomes either succulent or dry and hard.
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| 18. | The colour classification lists the perianth colour and then the corona colour.
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| 19. | It has a long perianth tube, which is thread-ilke.
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| 20. | The poorly differentiated perianth parts that occupy both positions are known as tepals.
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