ROSES RED, VIOLETS BLUE by Sylvia A. Johnson

ROSES RED, VIOLETS BLUE

Why Flowers Have Colors
by & illustrated by
Age Range: 12 & up
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KIRKUS REVIEW

 Eye-catching, full-color flower photos enhance this adaptation of Colors of Flowers and Insects (published in Japan in 1988). Rather like a high-school botany text, it describes reproduction in spore-producing plants, gymnosperms, and the familiar angiosperms. Specialized terms (pistil, stigma, anthocyanins) appear in bold and are defined in the glossary. Then comes the good stuff: The author describes how flowers appear colored because pigments in their petals absorb some wavelengths of visible light and reflect others, while white flowers contain air spaces that reflect light rays; the purpose of the color is to enhance pollination. Especially interesting are ultraviolet photographs showing flowers as they appear to insects, which can see light in the ultraviolet range. Difficult but fascinating for students who persevere. Scientific names of plants in the index. (Nonfiction. 12+)

Pub Date: Sept. 6th, 1991
ISBN: 0-8225-1594-6
Page count: 64pp
Publisher: Lerner
Review Posted Online:
Kirkus Reviews Issue: Sept. 15th, 1991




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