| 21. | The cordate prothallus are usually smaller with thinner midribs than that of other members of Polypodiaceae.
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| 22. | These are cordate with a blunt apex, which occasionally has a shallow notch at the tip.
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| 23. | The juvenile leaves are round, with a cordate ( base of heart-shaped ) base.
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| 24. | This plant forms a creeping rhizome and has cordate-ovate leaves that are medium green and glaborous.
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| 25. | The leaves are oblong, lanceolate or cordate ( heart-shaped ) and measure long by wide.
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| 26. | The leaves are heart-shaped ( cordate ), and measure long and wide with recurved margins.
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| 27. | The leaves are opposite and simple being 6 to 10 cm across, with base truncate or cordate.
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| 28. | The petiole of the leaf is slightly cordate, being bracketed on each side by the leaf blade.
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| 29. | It grows tall, with circular-cordate to ovate-cordate leaves that are typically long and wide.
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| 30. | It grows tall, with circular-cordate to ovate-cordate leaves that are typically long and wide.
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