columnines: Aquilegia bertolonii, A. formosa, and A. longissimi (Ranunculaceae). Second row are beardtongues: Penstemon
spectabilis and P. centranthifolius (Plantagineaceae). Third row are catchfly: Silene virginica and S. latifolia (Caryophylaceae).
The fourth row are morning glories: Ipomea indica, I. quamoclit, and I. alba (Convolvulaceae). The fifth row are
larkspurs: Delphinium nuttallianum and D. cardinale (Ranunculaceae). The last row are gilias: Ipomopsis aggregate and
I. longiflora (Polemoniaceae). Photos by Stickpen, Walter Siegmund, Cstubben, Lionnel, Derek Ramsey, Jebulon, Dinkum,
Forest & Kim Starr, S . Zenner, and Jerry Friedman.
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Evolution of multiple pollination syndromes. The columns from left to right are examples of bee- , hummingbird- , and moth- pollination syndromes. Each row shows representatives of the same genus.