NEW YORK STATE MUSEUM 



Paxillus involutus Fr. 

 Involute Paxillus. 



g. 18 A young plant. 



' 19 An immature plant showing the involute margin of the cap. 



' 20 A mature plant showing spots on the stem and gills where they have 



been bruised. 

 ' 21 A plant with an eccentric stem. 

 4 22 Vertical section through the center of a plant. 

 1 23 Four spores, x 400. 



PLATE 29. 

 Lactarius deliciosus Fr. 

 Delicious Lactarius. 



g. 1 A young plant. 



2 A plant with the cap partly expanded. 

 ' 3 A plant with the cap fully expanded and somewhat funnel-shaped, 



the gills wounded at 3a. 

 ' 4 An old plant faded and tinged with green. 



' 5 Part of a vertical section through the center of the cap and upper 

 part of the stem of a mature plant, showing the orange-colored 

 juice oozing from a wound in the gill at 5a. 



' 6 Four spores, x 400. 



PLATE 30. 



Lactarius volemus Fr. 

 Orange Lactarius. 



g. 1 A young plant. 



' 2 A plant having a small umbo in the center of the cap. 



' 3 A plant with a broadly convex rap. 



' 4 A plant with the cap somewhat funnel-shaped. 



' 5 A large plant with the cap broadly funnel-shaped, and the gills 

 wounded, discolored and dripping the white milk at 5a. 



' 6 A plant with the margin of the cap corrugated or wrinkled on its 

 surface. 



' 7 Vertical section of the cap and upper part of the stem of a small 

 plant, a drop of the white juice issuing from a wound in the gill 

 at 7a. 



' 8 Four spores, x 400. 



PLATE 31. 

 Russula virescens Fr. 

 Greenish Russula. 



g 1 A young plant. 



' 2 A plant with the cap partly expanded. 



' 3 and 4 Two plants with the caps slightly striate on the margin, one 



mature and the cap fully expanded. 

 4 5 A mature plant with the cap fully expanded, split in two places on 



the margin and yellowish-green in the center. 

 ' 6 Vertical section of the cap and upper part of the stem of a plant 



whose cap is convex. 

 ' 7 Vertical section of the cap and upper part of the stem of a plant 



whose cap is centrally depressed. 

 1 8 Four spores, x 400. 



