Old Master  (or  old master ) is a painter of skill who worked in Europe before about 1800, or a painting by such an artist. An  old master print  is an original print (for example an engraving or etching) made by an artist in the same period. Likewise an old master drawing .
Quick Answer. Dendrology is the study of trees and other woody plants, such as shrubs and woody vines. Dendrologists study every aspect of wooded plants to determine various characteristics of their structural systems. Continue Reading.
Botanists study plants to try to understand how these processes work. Their research is involved in enhancing crops, developing medicines, cleaning up contaminated sites, and even powering our cars. It's an exciting field on the cutting edge of the clean energy economy. It's also a profession for nature lovers. Some botanists study how plants relate to their natural communities. The work of these plant ecologists helps conserve endangered species and natural areas. Regardless of the specialty, we all benefit from their work. Simply put, botany is the study of plants.