Johann Jacob Paul Moldenhawer

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Johann Jacob Paul Moldenhawer (born February 11, 1766 in Hamburg , † August 21, 1827 in Kiel ) was a German botanist . Its official botanical author's abbreviation is “ Moldenh. "

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Moldenhawer was a son of the theologian Johann Heinrich Daniel Moldenhawer . He first studied theology at the Christian Albrechts University in Kiel and the University of Copenhagen until 1783 . There he began to deal with natural sciences , especially botany. Due to the publication of his work Tentamen in historiam plantarum Theophrasti in 1791, he was appointed associate professor of botany and fruit growing at the University of Kiel in 1792 , where he also gave lectures in classical Greek literature.

Moldenhawer's achievement in botany consists, among other things, of introducing a maceration method with which he was able to isolate plant cells from the tissue association and thus also recognized that the individual cells of the plants are surrounded by a cell wall. He was also interested in the guide vessels, in which he demonstrated that they are bundled together. He coined the term vascular bundle . He first discovered this structure on maize , and later also on the dicots . In his subtle histological studies, Moldenhawer also discovered the guard cells next to the stomata on the leaves.

Moldenhawer was knighted by the Danebrog in 1813 , and in 1824 appointed to the Royal Council of Justice.

His tomb is in the Eichhof park cemetery near Kiel.

Fonts

  • Tentamen in historiam plantarum Theophrasti . Hamburgi: Sumtibus Benjamin Gottl. Hoffmann, 1791.
  • Contributions to the anatomy of plants . XII, 335 S., VI Bl .: Ill .; 4 Kiel: Printed in the Königliche Schulbuchdruckerey by CL Wäser, 1812.

literature

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personal data
SURNAME Moldenhawer, Johann Jacob Paul
BRIEF DESCRIPTION German botanist
DATE OF BIRTH February 11, 1766
PLACE OF BIRTH Hamburg
DATE OF DEATH August 21, 1827
Place of death Kiel