232 BEPOKT OF THE STATE BOTANIST 



Paxillus involctus Fr. 



Involute Paxilltis. 

 Fig. 18 A young plant. 

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

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



been bruised. 

 " 81 A plant with an eccentric stem. 

 ' ' 22 Vertical section through the center of a plant. 

 ' ' 23 Four spores, X 400. 



PLATE 29. 



Lactarius deliciosus Fr. 

 Delicious Lactarius. 

 Fig. 1 A young plant. 

 " 3 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. 

 Fig. 1 A young plant. 

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

 " 3 A plant witli a broadly convex cap. 

 " 4 A plant with the cap somewliat 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 wrinliled 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 giU 

 at 7a. 



' ' 8 Four spores, X 400. 



PLATE 31. 



RUSSULA VIRESCENS Fr. 



Greenish Russula. 

 Fig. 1 A young plant. 



2 A plant with the cap partly expanded. 



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



mature and the cap fully expanded. 

 .5 A mature plant with tlie cap fully expanded, split in two places on 

 the margin and yellowish-green in the center, 



6 Vertical section of tlie cap and upper part of the stem of a jilant 

 whose cap is convex, 



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

 wliose cap is centrally depressed. 



8 Four spores, X 400. 



