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Floral UV-Absorption Patterns and Anthochlor Pigments in the Asteraceae
The Southwestern Naturalist
Vol. 23, No. 3 (Aug. 10, 1978), pp. 371-374
Published by: Southwestern Association of Naturalists
Stable URL: http://www.jstor.org/stable/3670243
Page Count: 4
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The spatial distribution of anthochlor pigments in ray florets of ten genera (86 species) of the Asteraceae (tribes Heliantheae and Helenieae) is presented. The presence and spatial segregation of these pigments yield a floral UV-absorption pattern, visible to pollinating insects, which may play a major role in reproductive isolation and speciation in the plant groups.
The Southwestern Naturalist © 1978 Southwestern Association of Naturalists