 Christiaan Hendrik Persoon described this species as Agaricus myomyces var. pardinus in 1801 , although he queried whether it was a distinct species . However , the German naturalist Jacob Christian Schäffer had in 1762 published Fungorum qui in Bavaria et Palatinatu circa Ratisbonam nascuntur Icones , in which he described a mushroom he called Agaricus tigrinus . The illustration accompanying the name fits what we now know as Tricholoma pardinum , although the description is less clear . To confuse matters further , Elias Magnus Fries used the name Agaricus tigrinus in his 1821 work Systema Mycologicum , in accordance with Bulliard 's 1782 description , which now corresponds with Lentinus tigrinus . In his 1838 work Epicrisis systematis mycologici : seu synopsis hymenomycetum , Fries assigned a different fungus again to the binomial name and linked it to Schäffer 's 1762 description . French mycologist Lucien Quélet reclassified it as a species in 1873 , giving it its current binomial name . Italian mycologist Alfredo Riva has noted that Swiss mycologist Louis Secretan provided a description forty years before Quélet , in his 1833 work Mycographie Suisse , and queried why it was ignored . He has proposed the fungus be written as Tricholoma pardinum ( Secr . ) Quél . However , Secretan 's works are generally not recognised for nomenclatural purposes because he did not use binomial nomenclature consistently . 
