Philipp Lorenz Geiger

Philipp Lorenz Geiger (29 August 1785 in Freinsheim – 19 January 1836 in Heidelberg) was a German pharmacist and chemist known for his work with plant alkaloids.

From the age of 14 he worked as an apprentice pharmacist in Adelsheim, followed by pharmacy training as an assistant in Heidelberg, Rastatt and Karlsruhe.

[1] With Ludwig Hesse, he isolated the alkaloids atropine, aconitine, colchicine and hyoscyamine.

[1][3] From 1824 to 1836 he was editor of the journal "Magazin für Pharmacie und die dahin einschlagenden Wissenschaften" (volumes 7–36).

Other published works by Geiger include: The standard author abbreviation Geiger is used to indicate this person as the author when citing a botanical name.