Agaricacese Polyporacese 



Agaricus. generally disappear with age, and the primary white color of the stem 

 is apt to become darker with age. The collar is membranaceous and 

 at first conceals the gills. It is persistent, silky and white or whitish, 

 sometimes tinged with brown. 



The cap is 2-4 inches broad; the stem 2-4 inches long, 3-5 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, 54th Rep. 

 N. Y. State Bot. 



Agaricus abruptllS Pk. (A. silvicola Vitt., A. arvensis var. ab- 

 ruptus Pk.) (Plate I, page 722.) Agaricus abruptus Pk. is described 

 on page 343 as A. silvicola Vitt. It is very common in the woods of 

 West Virginia, New Jersey and Pennsylvania. In the summer of 1901, 

 I found it in Rockingham Co., N. C. The probabilities are that its 

 spread is extensive. 



Being the wood cousin of the field mushroom (A. campester) it de- 

 serves more than ordinary attention. It is found during months which 

 do not favor the growth of the mushroom. It is equally good, though 

 not so fleshy. It gives the true mushroom flavor to less flavored edible 

 species when cooked with them. 



When seen at a distance, growing in the woods, it has the appearance 

 of an Amanita, but the color of the gills, which are never white after 

 the cap opens and become as the spores ripen a blackish brown, distin- 

 guishes it at once. Neither has it a volva. 



The excellent photograph of the species, taken by the late Dr. J. R. 

 Weist, Richmond, Ind., presents a life-like picture of it. 



Boletus. Boletus granulatus albidipes n. var. "Under pine trees. West- 

 port. October. This variety differs from the typical form of the 

 species in having the flesh of the pileus white, except next the tubes, 

 where it is faintly yellowish, the stem white externally and internally, 

 and in having a slight membranaceous veil which forms a very thin 



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