Report of the Botanist. 85 



On prostrate trunlvs in woods. Adirondack Mountains. 

 August. 



The dark colored disk is a prominent feature. 



52. Agaricus chryseus n. sp. 



Pileus thin, convex, at length plane or slightly depressed, 

 umbilicate, striatnlate, minutely squamulose ; lamellae not 

 crowded, rather narrow, j^ellow ; stipe nearly smooth, stuffed 

 or hollow, sometimes curved. 



Height l'-1.5', breadth of pileus 8"-12", stipe 1" thick. 



Old logs in woods. Adirondack Mountains. August. 



The whole plant is yellow. 



53. Agaricus scabriusculus n. sp. 



Pileus thin, broadly convex or expanded, striate, yellow ; 

 lamellae distant, broad, subtriangular, connected by numerous 

 veins, white or pale yellow ; stipe firm, yellow, minutely 

 squamulose, stuffed or solid. 



Height 1.5'- 2', breadth of pileus 6"-12". 



Mossy prostrate trunks in woods. Adirondack Mts. 

 August. 



A firm species, quite distinct from the preceding one. The 

 numerous connecting veins between the lamellae give a wrink- 

 led appearance to the striated margin of the pileus. 



54. Agaricus umbelliferus Z. 



Pileus thin, fleshy on the disk, convex or expanded, ob- 

 conic, subumbilicate, striate, pale yellow ; lamellae broad, dis- 

 tant, white, subtriangular ; stipe smooth, solid, often curved, 

 concolorous. 



Height 1', breadth of pileus 6"- 8". 



Mossy places in swaiups, and in vegetable mold on the top 

 of high mountains. North Elba and Mts. Marcy and White- 

 face. August. 



A fragile species, soon decajdng when collected. The color 

 is said to be variable. 



*oo. Agaricus Campaistella Batscli. 



Pileus thin, convex, umbilicate, smooth, striatulate, \\j- 

 grophanous, dull reddish-yellow ; lamellae narrow, yellowish, 

 venose-connected, arcuate ; stipe slender, firm, hollow, often 

 curved, brown, a little paler at the top, tawny-villous at the 

 base. 



Height l'-1.5', breadth of pileus 4"- 12". 



