Yellow-gilled russula; Russula alutacea; Agaricus alutaceus; agaric alutace; edible; and the sickener; Russula emetica; Agaricus emeticus; agaric emetique; poisonous. Chromolithograph by C. Krause of an illustration by Fritz Leuba from 鈥楲es champignons comestibles et les especes veLneLneuses avec lesquelles ils pourraient etre confondus' (Edible mushrooms and the poisonous species they should not be confused with); Delachaux et Niestle; Neuchatel; Switzerland; 1890; lithographed by H. Furrer. Fritz Leuba (1848-1910) was a mycologist and artist from Neuchatel; Switzerland.