 Van Tieghem's own "Traité de botanique" appeared in 1884, in which he outlined his schema for taxonomic classification.In 1876 he was the first to describe blastomycosis, a fungal infection that is also known as "Gilchrist disease", named after Thomas Casper Gilchrist (1862–1927), who published a treatise on the condition in 1896.He died in Paris in 1914.