N D I X. 



137 



AGARICUS Jiipitatus, pileo margine albido, apicibus nigrus, CLXXXV. 

 fiipite Jijlulofo bqji plumofo. atro-albus. 



BLACK and WHITE AGARIC. 



TAB. CXXXVII. 



'TpHE firft appearance of this Agaric, is a tuft or little plume 

 ■*• of white feathery bodies, of a very light and delicate fub- 

 ftance, ifTuing from a round, fibrous, brown root. From the 

 centre of this plume arife the pileus and ftem; the laft of 

 which is thereby furrounded, at its bafe, till the decay of the 

 plant. 



The ftem is fiftular, round, and fmooth ; at firfl of a duflty 

 hue, approaching to black ; as it advances in growth the upper 

 part becomes gradually paler ; and in a full grown plant the 

 upper part is white. The height is about three inches ; the 

 fubftance eafily fplits in filaments. 



The gills are arranged in three feries ; thofe of the third 

 often very fmall, and fometimes deficient in number. They 

 aie white, flexible, arched, and thofe of the firfl: feries are in- 

 ferted into the top of the ftem, by a broad obtufe claw. 



The pileus at firft is of an oblong form, at laft becomes 

 bell-fhaped. In the firft ftage it is black, except the margin, 

 which is white; and, in the advance of growth, the white of 

 the margin is extended up to the middle of the pileus, the 

 upper part remaining black to the laft. 



Grows amongft mofs about the roots of trees, in woods 

 about Halifax, but rarely. 



