Journal Article 2 Research Support, Non-U.S. Gov't 1 Research Support, U.S. Gov't, Non-P.H.S. 1 floral sex allocation 1 flower dimorphism 1 geitonogamy 1 limiting factors 1 mehr ... mating environment 1 ovule oversupply 1 ovule supplementation 1 pollen limitation 1 pollen receipt 1 pollen use efficiency 1 pollinator preference 1 prezygotic pollen limitation 1 sexual system 1 stochastic pollen receipt 1 weniger ...