. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . wo or three days, from the narcoto-irritant poison ofthe fungus. 2. Agaricus muscarius L.—Pileus scarlet-crimson, viscous in wetweather, and spotted with white or buff warts; gills at maturity sometimes of a pale sulphur-yellow tint;stalk bulbous, and furnished with a closelyadpressed volva and broad ring. The fleshis sulphur-yellow under the skin. Varietiesoccur with a yellow, brown, or whitishviscous pileus. This species grows in woods, generallynear birch trees, sometimes among firs.
. Guide to Sowerby's models of British fungi in the Department of Botany, British Museum (Natural History) . wo or three days, from the narcoto-irritant poison ofthe fungus. 2. Agaricus muscarius L.—Pileus scarlet-crimson, viscous in wetweather, and spotted with white or buff warts; gills at maturity sometimes of a pale sulphur-yellow tint;stalk bulbous, and furnished with a closelyadpressed volva and broad ring. The fleshis sulphur-yellow under the skin. Varietiesoccur with a yellow, brown, or whitishviscous pileus. This species grows in woods, generallynear birch trees, sometimes among firs. Thepoisonous alkaloid muscarine is obtainedfrom A. muscarius, about 200 lb. of thefungus being required for the productionof I oz. of muscarine. Auiaiiitine is alsoyielded by this species. It is known to bepoisonous, causing a form of intoxication,and sometimes delirium and death. TheRev. M. J. Berkeley has recorded a casefrom eating it. In past times a decoction ofthis fungus was used for killing flies; whence its name, from mitsca,a fly. A preparation said to be a solvent for corns is made from FiR. 5.—A. muscarius L.(One-quarter natural size.) of deep intoxication 3. Agaricus pantherinus DC.— olive-brown, viscid, andsprinkled with regularly arranged white warts; gills and fleshwholly and invariably white. It resembles the two last species in being poisonous, andoccurring in woods and pastuies. It has sometimes been mistakenfor the following species, A. rubescens, which is edible. A readymeans of distinguishing them is to be found in the fact that, on beingbruised or broken, A. rubescens always changes to a foxy-red colour,while A. pantherinus is permanently white. 4. Agaricus rubescens Pers.—Pileus reddish-brown, sometimespale or almost flesh-coloured, not viscous, more or less covered withmealy, pale buff or whitish warts; stalk rufescent; volva almostobliterated. This species is easily distinguished from its allies by the changein colour of its flesh n
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