The herbaria are classified into 2 types:Major or National herbaria: It covers the flora of the world and this can serve as the purpose of research. This can also serve the purpose of identification.Minor herbaria: Regional herbaria that are smaller herbaria are included in minor herbaria. The local area serves the purpose of smaller herbaria for the district or a very small area. A college or university herbaria serves the purpose of herbarium for students of graduation and post-graduation.