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Rudolf Jakob Camerarius

German botanist and physician (1665–1721)

Summary

German botanist and physician (1665–1721)

Field	Value
image	Rudolf jakob camerarius.jpg
birth_place	Tübingen, Holy Roman Empire
death_place	Tübingen, Holy Roman Empire
birth_date
death_date
other_names	Camerer
fields	Botanist and physician
doctoral_advisor	Elias Rudolph Camerarius Sr.
Georg Balthasar Metzger
doctoral_students	Johann Andreas Planer
known_for	Investigations on the reproductive organs of plants (De sexu plantarum epistola)
father	Elias Rudolph Camerarius Sr.

Georg Balthasar Metzger

Rudolf Jakob Camerarius or Camerer (12 February 1665 – 11 September 1721) was a German botanist and physician.

Life

Camerarius was born at Tübingen, and became professor of medicine and director of the botanical gardens at Tübingen in 1687. He is chiefly known for his investigations on the reproductive organs of plants (De sexu plantarum epistola (1694)).

While other botanists, such as John Ray and Nehemiah Grew, had observed that plants seemed to have sex in some form, and guessed that pollen was the male fertilizing agent, it was Camerarius who did experimental work. In studying the mulberry, he determined that female plants not near to male (staminate) plants produced fruit but with no seeds. Mercurialis and spinach plants fared likewise. With the castor oil plant (Ricinus) and with maize he cut off the staminate flowers (the "tassels" of maize), and likewise observed that no seeds formed. His results were reported in the form of a letter (the epistola), and attracted immediate attention, subsequent workers extending his results from the monoecious plants he had studied to dioecious ones as well.

Works

Notes

References

Duane Isely, One hundred and one botanists (Iowa State University Press, 1994), pp. 74–76

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

1665-births 1721-deaths scientists-from-tübingen 17th-century-german-botanists german-entomologists 17th-century-german-physicians 18th-century-german-physicians pre-linnaean-botanists 18th-century-german-botanists

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