Agaricus xanthodermus Genev. |
The cap is white, yellowing when touched. The cap surface is smooth, not viscid nor sticky. The stem is bulbous, with a double ring. The flesh is white, yellowing immediately when cut or touched; its taste is unpleasant, of phenol or ink; the odour is unpleasant, also of phenol or ink; its texture is fibrous. The gills are white then bright pink then dark purple brown, free, crowded . The spore print is purple brown. This species is saprophytic. It grows on the ground, in parks, meadows, pastures, gardens, open woods, rich grassland. The fruiting period takes place from April to November.
Chemical tests : no reaction to Schaeffer's test; flesh tinted in orange when in contact with potash. Distinctive features : spherical cap but flattened at its centre ('German grenade' shape when young) then flattened-expanded, staining yellow instantly when touched or bruised especially towards bulbous base; flesh turning yellow in stem base; odour and taste unpleasant (ink, phenol) Agaricus xanthodermus is quite rare and scattered in the forest of Rambouillet, and is occasional, more generally speaking . | ||
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page updated on 14/01/18