Breed (botany)

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The term race is occasionally used in botany for morphologically distinguishable populations within a species . This designation is not necessarily based on a taxonomic rank such as the subspecies , variety or form . In the ecological and biogeographical context, the term “ecological race” is used for ecotypes and the term “geographical race” for local populations, whereby the formation of races is usually seen as a preliminary stage to species formation .

Historically, in the first half of the 19th century, the term was occasionally used as an alternative to the rank of the subspecies , for example by Albrecht Wilhelm Roth or Augustin-Pyrame de Candolle , who considered it to be a further development of the variety that was actually unstable according to the understanding of the time term. In plant breeding , varieties are also sometimes referred to as races.

proof

  • Gerhard Wagenitz : Dictionary of botany. Morphology, anatomy, taxonomy, evolution. 2nd, expanded edition. Nikol, Hamburg 2008, ISBN 978-3-937872-94-0 , p. 316.
  • Peter Sitte, Hubert Ziegler, Friedrich Ehrendorfer, Andreas Bresinsky: Strasburger - textbook of botany . 34th edition. Gustav Fischer, Stuttgart, Jena, Lübeck, Ulm 1998, ISBN 3-437-25500-2 .

Individual evidence

  1. Hans Peter Fuchs: Historical remarks on the concept of subspecies . In: Taxon, 7: 2, 1958, pp. 44-52