Louis Théodore Frederic Colladon (25 August 1792 – 25 April 1862) was a Swiss medical doctor and botanist known for his investigations of the plant genus Cassia.IPNI List of taxa described and co-described by Colladon. He was the son of pharmacist and amateur botanist Jean-Antoine Colladon (1755–1830).
He studied medicine at the University of Montpellier, where one of his instructors was botanist Augustin Pyramus de Candolle. After graduation, he started a medical practice in Paris. As a medical doctor, he distinguished himself in the treatment of cholera patients during the epidemic of 1832.Google Books Mémoires de la Société de physique et d'histoire naturelle de Genève, Volume 16
Among his written works was a monograph on Cassia titled "Histoire naturelle et médicale des casses, et particulièrement de la casse et des sénés employés en médecine" (1816) and a tale involving descent in a diving bell that was published in English as "Narrative of a descent in the diving-bell, &c. &c." (Edinburgh : Printed for A. Constable, 1821).WorldCat Search publications In 1830 the plant genus Colladonia was named in his honor by Augustin Pyramus de Candolle.BHL Taxonomic literature : a selective guide to botanical publications
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