A comparison of embryo sacs and haustoria in selected species of Impatiens.

The object of this problem was to study the ovule development of selected species of Impatiens. Special emphasis was placed on the occurrence, origin, and nature of the haustoria in these species. The genus, Impatiens, is of embryological interest for two reasons. The conflicting statements concerning the types of embryo sacs in certain of the species must be reconciled (Maheshwari, 1955). The synergid, embryo sac and endosperm haustoria present interesting research material which may aid in the clarification of this family’s phylogenetic position