There are many ways to study plants. The modern science of botany developed out of medicine, beginning with the identification of plants used for medicinal purposes. The need to identify, describe, name, and classify plants, i.e., to catalog them, is basic to botany, because without this, one would not be able to communicate with others about specific kinds of plants. This aspect of botany is called taxonomy or systematics. The need to study and accurately describe the structure of plants led to the development of fields of morphology and anatomy.
Paleobotany is the study of fossil plants.
There are other fields of botany specializing in the study of particular plant groups. Algology or phycology is the study of algae, mycology of fungi, bryology of mosses and liverworts, and pteridology of ferns. The object of my study is to try To help both man and worm see eye to eye. Oligochaetology is the study of worms - specifically, the Class Oligochaeta within the Phylum Annelida. Worms occur in virtually all habitats where water is present, even in areas that are only slightly moist.