16 Peck : New Species of Fungi 



Agaricus brunnescens 



Pileus thick, firm, hemispherical, becoming convex or nearly 

 plane, fibrillose, sometimes slightly squamose, bay brown or 

 brownish, the margin extending beyond the lamellae and appendic- 



ulate by' the remains of the veil, flesh whitish or grayish white, 

 unchangeable, taste agreeable : lamellae close, rounded behind, 

 free but reaching the stem, at first whitish, then reddish pink, 

 finally brown : stem short, silky, stuffed or hollow, whitish, the 

 annulus thick, of a soft felty texture, persistent, whitish, often 

 striated on the upper surface by impressions of the edges of the 

 lamellae : spores broadly elliptic or subglobose, 6-8 u long, 4-6 ft 



broad. 



5-10 cm. broad : stem 2.5-4 cm. long, 8—16 mm 



Dump ground on deposits of manure and street scrapings. 

 East Cambridge, Mass. September and October. Miss Helen 



M. Noyes. 



The species differs from the common mushroom, A. campester, 

 in its brown color, in its thicker and more persistent collar, its 

 hollow stem and more rosy tint of the immature lamellae. The 

 cavity of the stem is small. From A. maritinuis, to which it has 

 some points of resemblance, it may be separated by its darker 

 color, its thicker and more persistent collar and by its flesh not 

 assuming reddish hues where wounded. 



Mr. G. B. Fessenden informs me that he found this mushroom 

 seven years ago growing in soil made of the sweepings of cattle 

 cars, but that he had not seen it since until this season. The 

 plants are gregarious and grow in very rich loose and dryish soil 

 composed of manure and sweepings of streets and cattle cars. 

 They continue to appear for several weeks in succession or until 

 cold weather stops their growth. They frequemtly develop fully 

 beneath the surface of the ground. A. maritimus also has this 

 same peculiarity. It is an edible species and is eagerly sought by 

 Italians who are after them every day by 4 o'clock in the morning. 



Stropharia irregularis 



Pileus thin, fragile, subcampanulate, irregular, umbonate, gla- 

 brous, often rimose about the umbo and split on the thin wavy or 

 irregular margin, whitish, grayish or yellowish, often white on the 

 margin : lamellae close, dingy pink when young, becoming brown 

 with age : stem slender, fragile, slightly floccose, hollow, often 

 cracking transversely, shining, white, the slight annulus soon 



