Scientific name:Agaricus excellens (F.H. Møller) F.H. Møller 1952 Synonyms:Index Fungorum 06.12.2015: Agaricus urinascens (Jul. Schäff. & F.H. Møller) Singer 1951 Habit of Growth:
Mushroom is not protected
Cap: 10-18 cm across, first hemispherical, later convex to plane, center is umbonate or indented, concentricall squamulose, first are squamules white, later brownish on a white background, sometimes also with yellow tones, margin is incurved for a long time, hung with white veil remnants if young.
Hymenophore: lamella are first plane, later pink to chocolate brown, broad, free, edges are smooth and little undulating.
Spore print: dark purple brown
Spore: elliptic, 8,5-11,5 x 5,1-6,6 μm
Stem: 10-15 x 2,5-4 cm, across, cylindric, sometimes enlarged toward the base, solid, surface above the the annulus smooth, below it white floccose squamulose, annulus is thick membranous, white, pendent, underside is squamose, margin is sometimes cogwhell like, flesh in base is sometimes reddening.
Flesh: white, only little discoloring red, in center thick, toward the margin thin, odor is pleasant, anise like, taste is mild, nutty.
Habitat: solitary to gregarious in hardwood and coniferous forests, among needle and leaf litter, rarely among grass, grows from summer to fall.
Remarks: similar with Agaricus macrosporus, which stem is shorter, and with Agaricus stramineus, which is sulfur yellow and stained.