| 31. | The inflorescence is made up of one or more pappus.
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| 32. | The fruit is an achene nearly a centimeter long with no pappus.
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| 33. | The inflorescence is a cluster of up to 30 pappus.
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| 34. | The fruits are achenes long, each with a feathery yellow pappus.
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| 35. | The inflorescence is made up of one pappus of bristles.
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| 36. | Pappus white, thin, hairy, 3 mm long.
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| 37. | In some species, the pappus is too small to see without magnification.
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| 38. | The flowers are purple and grouped in globular pappuses.
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| 39. | In general, they are pappus of white bristles.
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| 40. | Another thing to look for is Pappus'Theorem.
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