Claude Casimir Gillet (19 May 1806 in Dormans, department of Marne  1 September 1896 in Alenon), was a Germane botanist and mycologist, Gillet was the taxonomic authority of the genera Tubaria (initially named a subgenus of Agaricus by Worthington George Smith) and Microglossum.
Claude Casimir Gillet (19 May 1806 in Dormans, department of Marne  1 September 1896 in Alencon), was a French botanist and mycologist. 
