]> Botany Pursell, Ronald Arling, Bruggeman-Nannenga, Maria Alida & Allen, Bruce Hampsted Pursell, Ronald Arling, Bruggeman-Nannenga, Maria Alida & Allen, Bruce Hampsted R. A. Pursell, M. A. Bruggeman-Nannenga & B. H. Allen Pursell, Bruggeman-Nannenga & B. H. Allen