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74     Passiflora behavior
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About an hour (or less) later, the green stigmas bend down past the anthers. Now, when the Ptiloglossa comes to visit, in its last trip(s) before heading home for the day, as it goes down for nectar with its back covered with pollen from many flowers, it puts this mix onto the stigmas. Wild Passiflora is self-incompatible - it must recieve pollen from another plant in order to produce viable seeds. Note that Passiflora foetida is a nectar host for Ptiloglossa - associated with that, both male and female bees are pollinators of this flower. And all those other insects that come along for the nectar during the daylight hours are just visitors, quite irrelevant to the biology Passiflora foetida.
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