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  The oldest fossil lichen

  https://web.archive.org/web/20070111022833/http://www.uni-muenster.de/GeoPalaeontologie/Palaeo/Palbot/nature.html

  Keine Beschreibung vorhanden.

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  Angiosperm families - Leguminosae-Caesalpinioideae Kunth

  http://www.delta-intkey.com/angio/www/caesalpi.htm

  Description of Leguminosae-Caesalpinioideae Kunth, generated from a DELTA database.

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  The American Stationer - Google Books

  https://books.google.de/books?id=1WNYAAAAYAAJ

  Keine Beschreibung vorhanden.

• 

  The Collected Works of Sir Humphry Davy ...: Elements of agricultural ... - Google Books

  http://books.google.de/books?id=0nFKAAAAYAAJ

  Keine Beschreibung vorhanden.

• 

  The Collected Works of Sir Humphry Davy ...: Early miscellaneous papers from ... - Google Books

  http://books.google.de/books?id=jd9LAAAAYAAJ

  Keine Beschreibung vorhanden.

• 

  Angiosperm families - Pedaliaceae R. Br.

  http://www.delta-intkey.com/angio/www/pedaliac.htm

  Description of Pedaliaceae R. Br., generated from a DELTA database.

• 

  Traité sur le pastel et l'extraction de son indigo - Giobert - Google Books

  https://books.google.de/books?id=I3kPAAAAQAAJ

  Keine Beschreibung vorhanden.

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  Homepage

  https://web.archive.org/web/20070611134024/http://www-organik.chemie.uni-wuerzburg.de/ak_bring/research-garden.html

  Keine Beschreibung vorhanden.

• 

  Homepage

  https://archive.today/20070611/http://www-organik.chemie.uni-wuerzburg.de/ak_bring/research-garden.html

  Keine Beschreibung vorhanden.

• 

  Homepage

  http://wayback.archive.org/web/20070611134024/http://www-organik.chemie.uni-wuerzburg.de/ak_bring/research-garden.html

  Keine Beschreibung vorhanden.

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