100 FUNGUS-FLORA. 



with a pink or yellow hue. Gills adnate with a tooth, distant, 

 when old slightly ventricose, at first pale then glaucous 

 pinkish or yellowish, more or less connected by veins. Stem 

 3 in. high, 1-2 lines thick, fistulose, subfibrilloso-striate, 

 attenuated upwards, downy at the base, the down sometimes 

 rather tawny, sometimes firm and tenacious, sometimes very 

 brittle, grey above, yellowish or reddish beneath when 

 young, but when old sometimes changing above to a bright 

 yellow. Odour pungent, like that of fermented or putrid 

 walnuts. A very variable species ; often passing away into 

 a loathsome mass before it fully expands, sometimes becoming 

 dry and t.ugh, but still with the same peculiar odour and a 

 taste similar to it. (Berk.) 



Mycena ammoniaca. Fr. 



Strong-scented. Pileus |-f in. across, flesh very thin; 

 conical then expanded, umbonate, naked, discoid, opaque, 

 dark brown, sometimes greyish, margin paler and striate ; 

 gills adnate, linear, narrow, distinct, whitish; stem about 

 2 in. long and J line thick, rather firm, even, dry, whitish, 

 rooting. 



Agaricus (Mycena) ammoniacus, Fries, Hym. Eur., p. 142 ; 

 Cke., Hdbk., p. 83; Cke., Illustr., pi. 238A. 



On the ground. 



Smell like that of M. alcalina, from which the present 

 species differs* in growing singly on the ground ; stem 

 perfectly dry, and without a yellow tinge. M. metata differs 

 in the soft sul>stauce of every part, pileus hygrophanous and 

 soon becoming whitish. 



Mycena metata. Fr. 



Pileus |-| in. across, flesh very thin, hemispherical, then 

 campanulate, obtuse, soft, very hygrophanous, grey and 

 sligutly stria te when moist; even, opaque, and whitish when 

 dry, and looks somewhat silky, at least under a lens ; gills 

 adnate, narrow, linear, rather distant, distinct, whitish; 

 stem 2-3 in. 1 ,ng, slender, soft and flaccid, even, glabrous, 

 greyish-white, base fibrillose, but not trulv rooting spores 

 elliptical, 8- 10x4-6 /x. 



Agaricus metatus, Fries, Syst. Myc., i. p. 141 ; Cke., Hdbk., 

 p. 83; Cke.. lliustr., pi. 238n. 



Among moss in pine woods, &c. 



