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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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B
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Bract
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INFOTEXT
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1992-09-03
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A leaflike structure, in whose axil a flower
or inflorescence develops. Bracts are
generally green and smaller than the true
leaves. However, in some plants they may be
brightly coloured and conspicuous, taking
over the role of attracting pollinating
insects to the flowers, whose own petals are
small; examples include poinsettia (Euphorbia
pulcherrima) and bougainvillea. A whorl of
bracts surrounding an inflorescence is termed
an involucre. A bracteole is a leaflike organ
that arises on an individual flower stalk,
between the true bract and the calyx.