Supplement 



(Plate CCVI.) 



VSnat 



silky fibrillose, slightly viscid, whitish or pallid. Spores subelliptic, 

 .0004 to .0005 of an inch long, .0002 to .00024 broad. 



Pileus 2 to 4 inches broad. Stem 3 to 6 inches long, 4 to 6 lines 



thick. Low moist places in woods. 

 Bolton, New York. August. 



The margin of the pileus is generally 

 'paler than the rest and separated from it 

 by a definite line. It is from 3 to 6 lines 

 broad and is sometimes curved upward 

 and conspicuously fibrillose. The dif- 

 ference between the margin and the rest 

 of the pileus is not clearly shown in the 

 dried specimens. The species belongs 

 to the section Myxacium. Peck. 



As to edible qualities we have no 

 available report concerning this species. 

 None in this genus has been found to be 

 harmful, even though several are bitter and many unpleasant. The flesh 

 is apt to be dry and of a strong woody flavor, and cooking does not 

 dissipate either of these characteristics. 



Agaricus abruptibulbus Pk. Rep., 1908: 60. (A. silvicola Vitt., 

 A. arvensis var. abruptus Pk). (Plate CCVII.) Agaricus abruptns 

 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 county, North Carolina. 

 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. Mcllvaine. 



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