N VTl/KAL HISTORY SI K\ I.V .",7 



Lactarius luteolus Pk. 



Pileus fleshy, rather -thin, convex or nearly plane, commonly 

 umbilicately depressed in the center and somewhal rugulose, 

 pruinose or subglabrous, huff-color; flesh while; taste mild; milk 

 copious, flowing easily, white or whitish. 



Lamellae close, nearly plane, adnate or slightly rounded behind, 

 whitish, becoming brownish where wounded. 



Stem sheii, equal or tapering downwards, solid or somewhat 

 spongy within, colored like the pileus. 



Spores globose, 7.5 /•<..; pileus 5 to 7.5 cm. broad; stem 2.5 to 

 3.5 cm. long, 6 to 10 mm. thick. 



Sandy woods. Millers. June. 



Lactarius volemus Fr. 



Pileus firm, convex, nearly plane or centrally depressed, 

 rarely infundibuliform, sometimes with a small umbo, generally 

 even, glabrous, dry, golden-tawny or brownish-orange, sometimes 

 darker in the center, often becoming rimose-areolate. 



Lamellae close, adnate or subdecurrent, white or yellowish, 

 becoming sordid or brownish where bruised or wounded. 



Stem subequal, firm, solid, glabrous or merely pruinose, colored 

 like the pileus, sometimes a little paler. Milk copious, white, 

 "taste acrid." (Peck.) 



Spores globose, 8.7 to 11 //.. Pileus 2 to 12.5 cm. broad: stem 

 2.5 to 10 cm. long, S to 20 mm. thick. 



Woods, Highland Park. August and September. Watson, 

 Harper. 



Glen Ellyn. Not found in 1901; quite common in 1902. The 

 pileus is seldom more than S cm. broad. The milk in our plants 

 is mild, agreeing in this respect with L. corrugis Peck, but the pileus 

 is not "corrugated" as it is said to be in that species, although 

 sometimes it is slightly wrinkled. 



Lactarius subdulcis Pull. 



Pileus thin, convex, then plane or subinfundibuliform, with 

 or without a small umbo or papilla, glabrous, even, zoneless, 

 moist or dry, tawny-red, cinnamon-red or brownish-red, the 

 margin sometimes wavy or flexuous. 



Lamellae adnate, crowded, colored like or paler than the 1 

 pileus. 



Stem slender, glabrous, stuffed then hollow, colored like or 

 paler than the pileus. Milk white, taste mild or tardily and 

 slightly acrid. 



Spores white, globose, 7.5 to 9 ^. Pileus 10 mm. to 5 cm. 

 broad; stem 2.5 to 6 cm. long, 2 to 6 mm. thick. 



^ Among leaves in woods, Millers and Glencoe. Very similar 

 in appearance to some forms of Clitocybe hi, -rata, and often as- 

 sociated with it. Taste mild; spores globose, slightly rough, 

 about 8 fx. 



