Supplement 



The cap is 24 inches broad ; the stem 24 inches long, 35 lines 

 thick. It grows in woods or bushy places and seems to prefer damp 

 soil rich in vegetable mold. It may be found from August to October. 

 It sometimes grows in clusters. It gives to milk in which it is stewed a 

 brownish color. Its flavor is similar to that of the common mushroom. 

 A variety in which the stem is commonly shorter and the pileus of a 

 darker smoky brown color is sometimes abundant in low damp ground 

 on Long Island. It may be called variety fumosus. Peck. 



Agaricus Morgan! Pk. Bot. Gaz., 4: 137. The majority of my- 

 cophagists are immune to the poison of this species. (See page 738.) 

 Yet many cases of severe, but not fatal poisoning by ; t came within the 

 writer's knowledge during the season of 1900-1901. 



A valuable report is contained in a letter from George B. Clementson, 

 attorney, Lancaster, Wis. : 



" * * Agaricus Morgani has grown in this locality this season in 



unusual abundance. While I was absent last week, my father picked a 

 number, mistaking them for L. procera, and my mother, in preparing 

 them for the table, ate a small piece of the cap of one a piece, she 

 assures me, no larger than a hickory nut. About two hours afterward 

 and shortly after dinner (at which the mushrooms were not served, and 

 at which nothing indigestible was eaten) she experienced a peculiar 

 numbness and nausea, with constriction of the throat. Vomiting set in 

 within half an hour and was excessive, lasting several hours and giving 

 no relief. She was very greatly weakened and thought herself dying, 

 being so reduced at one time that she was unable to see. Purging set 

 in not long after the vomiting. The constriction of the throat did not 

 disappear until after the vomiting stopped. 



"Whisky and nitroglycerine (by the stomach) were given to keep up 

 the heart's action. 



"It seems probable that the poison itself did not directly affect the 

 heart, but that the alarming weakness was due to the vomiting and 

 purging. That is my mother's own opinion. After being in bed for a 

 day she was able to get around, but suffered considerable pain in the 

 abdomen for forty-eight hours. 



" I presume that owing to the fact that my mother is not very strong 

 and has a weak stomach, she was more violently affected than many 

 might be. But a poison that in any person can produce such symp- 



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