Late-acting self-incompatibility and a narrow floral tube as selective forces for stylar dimorphism in Narcissus (Amaryllidaceae): A response to Simón-Porcar

Abstract

Simon-Porcar proposes an alternative origin in the evolutionary pathway to heterostyly as described in a model proposed by Lloyd and Webb. Below I summarize her key points and namely consider the implications of comparing her model to ideas within the Charlesworth and Charlesworth model. The hypothesis that she has chosen to propose is similar to ones that others have proposed for this same genus, thus I have tried to distinguish how Simon-Porcar’s hypothesis differs from theirs, as well as give credit to their contributions to these ideas. Finally, I have added a few more suggestions related to testing her hypothesis.