Prince mushroom, Agaricus augustus (Psalliota augusta) and field mushroom, Agaricus campestris (Psalliota campestris). Chromolithograph by Lassus after an illustration by A. Bessin from Leon Rolland's Guide to Mushrooms from France, Switzerland and Belgium, Atlas des Champignons, Paul Klincksieck, Paris, 1910.
Prince mushroom, Agaricus augustus (Psalliota augusta) and field mushroom, Agaricus campestris (Psalliota campestris). Chromolithograph by Lassus after an illustration by A. Bessin from Leon Rolland's Guide to Mushrooms from France, Switzerland and Belgium, Atlas des Champignons, Paul Klincksieck, Paris, 1910.