80 FUNGUS-FLOEA. 



even, glabrous, rather paler than the pileus, flesh like that 

 of pileus dingy yellow, becoming reddish brown when cut ; 

 spores colourless, globose, with raised bands forming a 

 network, 10 /x diameter; milk white then brown, sweet, 

 becoming very thick and tenacious. 



On the ground under beech-trees. Fairmead, Epping 

 Forest, Oct. 1888. 



The present species is allied to, and superficially resembles 

 Lactarius picimis, L. fuligiiiosus, and L. ligniotus. All are 

 about the same size and have the pileus of a smoky -brown 

 colour. The following analysis indicates their most pro- 

 nounced distinctive features. 



A. Pileus velvety. 



L. retisporus. Pileus radially rugulose ; gills rather 



distant ; milk sweet, white then brownish ; spores 



with a network of raised lines. 

 X, ligniotus. Pileus radially rugulose ; milk sweet, white 



then saffron- colour ; spores minutely echinulate. 

 L. picinus. Pileus even ; gills much crowded ; milk acrid, 



persistently white ; spores minutely warted. 



B. Pileus not velvety. 

 L. fuliginosiis. 



Lactarius (Russ.) lilacinus. Lasch. 



Pileus 1-2 in. across, flesh rather thick, convex then de- 

 pressed, sometimes with a central small papillose umbo, 

 rosy-lilac, not zoned, granulose, floccose when dry; gills 

 adnate or slightly decurrent, rather distant, about 1 line 

 broad, pallid with a tinge of pink; milk acrid, white, 

 unchangeable, spores subglobose with an apiculus, echinu- 

 late, 7 /x diam. ; stem about 1 in. long, 2 lines thick, pallid, 

 sprinkled with a white bloom, stuffed then hollow. 



Lactarius lilacinus, Lasch, Linnaea, iii. n. 78 ; Cke., Hdbk., 

 p. 315; Cke., Illustr., pi. 998a. 



In damp woods. 

 ; Fragile ; milk copious. 



