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" Tribe Arethuseae (Calopogon R. Brown and Arethusa L.) and Subfamily Vanilloideae (Part One) (Pogonia Jussieu) "
Charles L Argue (Ph.D) Affiliation: College of Biological Sciences, University of Minnesota, Saint Paul, MN, USA
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BL
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801949
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b622019
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Charles L Argue (Ph.D) Affiliation: College of Biological Sciences, University of Minnesota, Saint Paul, MN, USA
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Tribe Arethuseae (Calopogon R. Brown and Arethusa L.) and Subfamily Vanilloideae (Part One) (Pogonia Jussieu)\ Charles L Argue (Ph.D) Affiliation: College of Biological Sciences, University of Minnesota, Saint Paul, MN, USA
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9781461406211
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: 9781461406228
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| Abstract
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<i>Arethusa bulbosa</i>, <i>Calopogon tuberosus</i>, and <i>Pognia ophioglossoides</i> are self-compatible but adapted to outcrossing. The flowers produce little or no reward and are probably pollinated primarily by deceit. Fruit production is pollen limited. Pollinators are bees apparently attracted to the large, colorful perianths and ultraviolet absorbing, anther-like brushes on the lips. Larger flowers of <i>C. tuberosus</i> discriminate among pollinators and prevent hybridization with three smaller, -sympatric species. Reproductive isolation among the smaller flowered taxa is maintained primarily by differences in phenology, habitat, and pollinator preference. The flowers of <i>C. oklahomensis</i> are similar in size to those of <i>C. tuberosus</i>, but this species is hexaploid and blooms earlier.
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Charles L Argue (Ph.D) Affiliation: College of Biological Sciences, University of Minnesota, Saint Paul, MN, USA
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