Abstract
Calotropis procera (Asclepiadaceae) grows in Israel under extremely hot climatic conditions. Flower morphology is adapted towards the concealment of nectar, in order to protect it against robbery by ants and from evaporation. Pollinia while being inserted within the stigmatic chamber, are soaked in the liquid nectar which, by its concentration controls pollen germination. Two Carpenter bees (Xylocopa) are the only pollinators and their behavior on flowers is discussed.
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Eisikowitch, D. Morpho-ecological aspects on the pollination ofCalotropis procera (Asclepiadaceae) in Israel. Pl Syst Evol 152, 185–194 (1986). https://doi.org/10.1007/BF00989426
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DOI: https://doi.org/10.1007/BF00989426