WHITE-SPORED AGARICS. 



119 



under the microscope, strongly echinulate or tuberculate, globose, 

 6-10 yw. The stem is usually paler than the pileus, firm, stuffed. 

 The milk is white, slowly acrid to the taste. 



Figure 120 is from plants (No. 3867, C. U. herbarium) collected 

 at Blowing Rock, N. C, during September, 1899. 



Lactarius gerardii Pk. This plant was described by Dr. Peck in 

 the 26th Report, N. Y. State Mus., p. 65, and in the 28th Rept. p. 

 129. According to the de- 

 scriptions it differs from Lac- ^ 

 tarius fuliginosus only in the 

 spores being white, the gills 

 more distant, and the taste 

 being constantly mild. Since 

 the taste in L. fuliginosus is 

 sometimes mild, or slowly 

 acrid, and the lamelliE in the 

 older plants are more distant, 

 the spores sometimes only 

 tinged with yellow, there 

 does not seem to be a very 

 marked difference between 

 the two species. In fact all 

 three of these species, fuligi- 

 nosus, lignyotus and gerardii, 

 seem to be very closely re- 

 lated. Forms of fuliginosus 

 approach lignyotus in color, 

 and the pileus sometimes is 

 rugose wrinkled, while in lig- 

 nyotus pale forms occur, and 

 the pileus is not always 

 rugose wrinkled. The color 

 of the bruised lamella is the 

 same in the two last species 

 and sometimes the change in 

 color is not marked. 



Lactarius torminosus (Schaeff.) Fr. This plant is widely distribu- 

 ted in Europe, Asia, as well as in America. It is easily recognized 

 by the uneven mixture of pink and ochraceous colors, and the very 

 hairy or tomentose margin of the cap. The plants are 5-10 cm. high, 

 the cap about the same breadth, and the stem 1-2 cm. in thickness. 

 It occurs in woods on the ground during late summer and autumn. 



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