94 FUNGUS-FLOKA. 



white, edges darkened with minute particles; stem 1^-2 in. 

 long, slender, equal, greyish, minntel}^ floccose, slightly 

 rootinu: and tomentose at the base, hollow. 



Agaricus {Mycena) mirahilis, Cke. and Quelet, Clavis, p. 39 ; 

 Oke., Hdbk.j p. 85 ; Cke., Illustr., pi. 951a. 



Agaricus marginellus, Fries, Hym. Eur., p. 131 (not of 

 Persoon). 



On fir trunks, among moss. 



Somewhat resembling 31. iris, but distinguished by the 

 iimbonate pileus and dark-edged gills. 



Pileus 3 lines across, conical, striate, pallid grey, darker 

 in the centre, minutely rivulose ; margin subcrenulate ; stem 

 short, slightly curved, shining, quite smooth, minutely fistu- 

 lose ; gills distant, slightly- adnexed, white, with a purple 

 margin. Under a high magnifying power, the pileus (espe- 

 cially the edge) and stem appear clothed with minute 

 glandular particles similar to those which colour the edge 

 •of the gills. (B. & Br.) 



Mycena iris. Berk. 



Pileus ^-§- in. across, very thin ; hemispherical then more 

 or less expanded, obtuse, striate, slightly viscid, blue when 

 young, then brownish and ornamented with blue and 

 adglutinated fibrils; gills almost free, narrow, tinged grey; 

 stem lJ-3 in. long, slender, equal, bluish below and tinged 

 with brown above, with fascicles of down here and there. 



Agaricus (Mycena^ iris, Berk., Outl., t. 6, f. 2; Cke., Hdbk., 

 p. 85; Cke., Illustr., pi. 161b. 



On fir stumps. 



Fasciculate or scattered, brittle, when young the pileus 

 and stem are bright sky-blue and beautifully tomentose. 

 Pileus |— f of an in. broad, membranaceous, hemispherical, 

 obtuse, striate, umber, clothed with blue fibrillae which are 

 glued down to the epidermis, scattered in the centre, thicker 

 and more free on the margin, which is slightly denticu- 

 late. Gills free or slightly adnexed, linear, pale cinereous, 

 the margin sometimes denticulate. Stem I^-SJ in. high, 

 not 1 line broad, not rooting, blue below, above sub- 

 rufescent, the tomentum below depressed and blue, above 

 nearly white, minutely but distinctly fasciculato-pilose : in 

 Yery elongated specimens obsolete. Another form has the 



