Verbatim text: Williams, C. E. 2004. Mating system and pollination biology of the spring-flowering shrub, Dirca palustris. Pl. Sp. Biol. 19: 101–106.
Author: Williams, C.E.
Year: 2004
Title: Mating system and pollination biology of the spring-flowering shrub, Dirca palustris
Journal: Pl. Sp. Biol
Volume: 19
Pages: 101–106