Eeport of the State Botanist. 49 



Cordier says that it is at least suspicious and that Vivian pronounces 

 it " pernicious." Its odor is strong and its flesh Avhen cut assumes a 

 slight yellowish tint. 



Agaricus diminutivus, Ph. 

 Diminutive Agaric. 



Pileus thin, fragile, at first convex, then plane or centrally de- 

 pressed, sometimes slightly umbonate, whitish or alutaceous, faintly 

 spotted with small thin silky appressed brownish scales,the disk brownish 

 or reddish-brown ; lamellte close, thin, free, ventricose, brownish-pink 

 becoming brown, blackish -brown or black ; stem equal or slightly 

 tapering upward, stuffed or hollow, smooth, pallid ; annulus thin, per- 

 sistent, white; spores elliptical, .0002 in. long, .00015 to .00016 in. 

 broad. 



Plant 1.5 to 2 in. high, pileus 1 to 1.5 in. broad, stem 1 to 2 lines 

 thick. 



Woods. Croghan and Sandlake. Autumn. 



This is a small but symmetrical and beautiful Agaric. It is perhaps too 

 closely related to the preceding species of which it may possibly prove 

 to be a mere variety or dwarf form. Its pileus is quite thin and fra- 

 gile. Usually the darker or reddish hue of the disk gradually loses it- 

 self in the paler color of the margin, but sometimes the whole surface 

 is tinged with red. 



In closing this brief report my most cordial thanks are tendered to 

 those botanists who have aided me by contributing specimens and in- 

 formation, and their continued co-operation in the work now well ad- 

 vanced is most earnestly solicited. 



Respectfully submitted, 



CHAS H. PECK. 

 Albany, January 8, 1883. 



[Sen. Doc. No. 53.] 7 



