100 FUXGUS-FLOEA. 



Avith a pink or yellow line. Gills adnate witli a tooth, distant, 

 when old sliij^htly ventricose, at first pale then glaucous 

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

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

 attenuated upwards, down}^ 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 exjoands, 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 ^-| in. across, flesh very thin; 

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

 dark brown, sometimes greyi>h, margin paler and striate; 

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

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

 rootiLg. 



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

 Cke., Hdbk., p. 83; Cke., Illustr., pL 238a. 



On the ground. 



Smell like that of 31. alcalina, from which the present 

 species differs in growing singly on the ground ; stem 

 perfectly diy, and without a yellow tinge. 31. metata differs 

 in the soft sul "Stance 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 

 sligiitly striate w^hen moist; even, opaque, and whitish when 

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

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

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

 greyish-wliire, base fibrillose, but not truly rooting; spores 

 elliptical, 8-10 x 4-6 fx. 



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

 p. 83; Cke.. Illustr., pi. 238b. 



Among moss in pine woods, &c. 



