antique botanical wall chart ca.1900 black henbane hyoscyamus niger
a classical wall chart depicting the natural history inflorescence of a black henbane (hyoscyamus niger). used as teaching material in German schools ca. 1900s. the chart is part number 15 of the series of poisonous plants in germany. the chart is published by von Friedr.Vieweg & Sohn, Braunschweig. the author is Dr.P.Esser, Cologne and the illustrator is Carl Bollmann. colorful print on cardboard (chromolithography).