[Translation of the caption] <i>Agaricus dryophilus</i> is found very frequently all year in our woods; it grows on soil, on dead leaves, amongst moss, grass etc.; its cap is thin, smooth, and without striation at least until it approaches the end of its process of decay; the gills are very narrow at the outside and thickened at the base where they terminate suddenly to meet the stipe higher up forming a deep concavity; the stipe is tubular, a bit expanded at the top and normally of a different colour from the cap ... we have no other mushroom more subject to variations in colour and form than this one, nor with such differences in dimensions in the same locality.  One might doubt, for example, that the specimens marked A., B., C. in the illustration were the same species as those marked D., E., F.; nevertheless they are all only varieties of one and the same species, and if one regards attentively the intermediate gradations in form, there can be no question about this.
Jean Baptiste François Bulliard
1793
Jean Baptiste François Bulliard: Histoire des champignons de la France 2, 1793, plate 434