Xenogamy is a form of cross pollination in which pollen grains from one flower's anther are transferred to the stigma of another flower in order to fertilise it. Example of xenogamy involves: Squash, onions, broccoli, and spinach.

As a result, the word hybrid has a broader meaning than mongrel or crossbreed, which typically refer to animals or plants that are the result of a cross between two races, breeds, strains, or variations of the same species.

When a sperm cell successfully encounters an egg cell in the fallopian tube, fertilisation occurs. This newly fertilised cell is known as a zygote after fertilisation. The zygote will go down the fallopian tube and into the uterus from here. After that, the zygote burrows into the uterine lining.

The science of the relative location of flowers; the arrangement of flowers in a cluster is known as anthotaxy. It is the study of inflorescence. An inflorescence is categorized on the basis of the arrangement of flowers on a main axis (peduncle) and by the timing of its flowering (determinate and indeterminate).

A pedicel is a structure that connects one flower to its inflorescence. A peduncle is a stem or branch from the main stem of the inflorescence that carries a collection of pedicels. A pedicel can be paired with one or more bracts. It is a stem that attaches a single flower to the inflorescence. The function of pedicels is to expose flowers to the sun and wind and put them in a position so their aroma and color attracts pollinating insects more easily.

Porogamy is the process of a seed plant being fertilised by the micropyle passing the pollen tube into the ovule. It is the most common type. e.g., Lily. It is the condition when the pollen tube enters the ovule from the micropylar end.

Chalazogamy is the entry of pollen tubes through the integuments or chalaza. Treub was the one who found it. For example- Casuarina . Ulmus exhibits partial chalazogamy. A pollen tube enters the ovule through chalaza lying opposite the micropyle. It will enter the embryo sac through micropylar end.