Pieter De Pannemaeker was a prolific watercolor artist and printmaker active in Ghent, Belgium, in the 19th century. He specialized in landscapes and botanicals and contributed to many periodicals and publications when Belgium was the leading center for botanical publishing. His credits include art and chromolithographs for Jean Jules Linden’s publications Lindenia and L’Illustration Horticole. Most of the plants depicted in "Flore des Serres" were available for sale in van Houtte's nursery, so that in a sense the journal doubled as a catalogue.
Source: Extracted from: http://en.wikipedia.org/wiki/Flore_des_Serres_et_des_Jardins_de_l%27Europe 2011