Mode of Pollen-Tube Growth in Pistils of Myrica rubra (Myricaceae): A Comparison with Related Families

Abstract

Myrica differs from other families in that the pollen tubes arrest their growth on the nucellar surface, probably digesting nutrient from nucellar cells. There is little information on five other families of Fagales. An extensive study is needed to better understand the diversity and function of the mode of pollen-tube growth within the order.