| 1. | Similarly, the'calyx'is an involucre of bracts.
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| 2. | The bracts tips are rounded and involucre 6 12 mm high.
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| 3. | The inflorescence is a solitary involucre of about 8 fused phyllaries.
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| 4. | Pressley Baird, 11, Mebane, N . C . _ involucre
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| 5. | The involucre is ovate to lanceolate in shape and sericeous.
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| 6. | The whorl of bracts beneath the inflorescences is called involucre.
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| 7. | A set of bracts forms an involucre surrounding the base of the capitulum.
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| 8. | The flower involucres are narrowly campanulate in shape and 4 5 mm long.
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| 9. | The involucre has 30 to 40 green, imbricated scales with short hairs.
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| 10. | At its base is a fused involucre of bracts.
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