the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > flower or flowering plant > [noun] > pollination > chalazogamy or porogamy
porogamy1896
chalazogamy1902
1902 Encycl. Brit. XXV. 436 The pollen-tube..may pierce the embryo-sac at the chalazal end or at the side (basigamy or chalazogamy).