Science photo
Extensive plant archive
![Dr Jörn Hentschel is the curator responsible for sorting specimens in the depository of the »Haussknecht Herbarium« at the University of Jena. With more than three million specimens of dried plants, a library containing around 170,000 bibliographic units and an extensive archive, the »Haussknecht Herbarium« is one of the 20 largest herbaria in the world.](https://www.lichtgedanken.uni-jena.de/magazinmedia/24596/m061221073.jpg?height=534&width=800)
Dr Jörn Hentschel is the curator responsible for sorting specimens in the depository of the »Haussknecht Herbarium« at the University of Jena. With more than three million specimens of dried plants, a library containing around 170,000 bibliographic units and an extensive archive, the »Haussknecht Herbarium« is one of the 20 largest herbaria in the world.