Bentham and Hooker’s Classification

Bentham and Hooker jointly published a vast  work the Genera Plantarum in which they arranged their species according to a system.Since this was last of the natural systems and is widely accepted in the commonwealth countries.
Bentham and Hooker
Bentham and Hooker divided the Angiospermae into two classes: Dicotyledons and Monocotyledons and in between this they have placed Gymnosperms. Dicotyledons is again divided into three subclasses. They are Polypetalae,Gamopetale and Monochlamydeae. These sub classes are again divided into series. Series is again divided into order or cohort and order into family. Key to Bentham and Hooker’s Classification Read more>>
Important features:
  • It is a classification of only the seed plants.
  • The seed plants were numbered at 97,205 species and distributed among the major taxa.
  • Monocotyledons were distributed after the dicotyledons.
  • The dicotyledons were divided into Polypetalae, Gamopetalae and Monochlamydeae (Apetalous taxa)
  • Creation of Disciflorae, a taxon not described by the earlier taxonomists.
  • The gymnosperms were considered as a third taxon of seed plants and placed between  the dicots and monocots.
  • The authors do not mention anything about the origin of the angiosperms.
  • Among the Monochalmydeae, major taxa, like the series were divided on the basis of terrestrial and aquatic habits.
Merits and Demerits of Bentham and Hooker’s Classification
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