Chalazogamy was first discovered in monoecious plant species of the family Casuarinaceae by Melchior Treub, but has since then also been observed in others, for example in pistachio and walnut.

What is Chalazogamy example?

Chalazogamy is the entry of pollen tube through chalaza or the integuments. This was discovered by Treub. For example- Casuarina. Partial chalazogamy is found in Ulmus.

What is Chalazogamy in plants?

: a process of fertilization in which the pollen tube penetrates to the embryo sac through the tissue of the chalaza.