Austrobaileya has long served as a model for ancient angiosperm pollen structure. Its pollen germination is relatively rapid and requires < 10 % of the progamic phase. Extensive evidence discussed in this paper suggests pollen germination underwent acceleration early in angiosperm history.
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Ecosystems
A garden plant called Kalanchoe × houghtonii is spreading along Mediterranean coasts and may be pushing out native plants that normally grow there.
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The dunes of barrier islands erode during storm events but they also prevent damage to inland ecosystems. For these dunes to function in this way, vegetation
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Climate change-induced drought has already contributed to increased plant mortality around the globe, including in forest ecosystems. Drought events are projected to become even more
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