332 NEW YORK STATE MUSEUM 



Fig. 5 An immature plant having an ash-colored cap. 

 ' ' 6 A mature plant with a blackish-brown cap. 

 ' ' 7 A plant with a brown cap. 



' * 8 Vertical section of the cap and upper part of the stem of a plant. 

 ' ' 9 Four spores, x 400. 



PLATE 36. 

 Boletus castaneus Btill. 

 Chestnut Boletus. 

 Fig. 1 A young plant showing the whitish tubes. 

 • ' 2 and 3 Mature plants. 



" 4 A mature plant with the margin of the cap slightly curved upwards . 

 ' ' 5 Vertical section through the center of a young plant. 

 ' ' 6 Vertical section through the center of a mature plant. 

 ' ' 7 Four spores, x 400. 



Boletus edulis Bull. 

 Edible Boletus. 

 Fig. 8 A young plant showing the white tubes. 

 ' ' 9 A mature plant of small size. 

 " 10 A mature plant of medium size. 

 " 11 Vertical section of the cap and upper part of the stem of a mature 



plant. 

 " 12 Four spores, X 400. 



PLATE 37. 



POLYPORUS SULPHUREUS Fr. 



Sulphury Polyporus. 

 Fig. 1 A cluster of four plants growing from decaying wood. 

 • ' 2 A single plant showing the upper surface of the cap and the yellow 



freshly grown margin. 

 ' ' 3 Vertical section of a plant. 

 " 4 Four spores, x 400. 



FlSTULINA HEPATICA Fr . 



Liver Mstulina. 



Fig. 5 A plant showing the upper surface of the cap . 

 ' ' 6 A plant showing the lower surface of the cap. 

 ' ' 7 Lateral view of a plant growing from decayed wood. 

 ' ' 8 Vertical section of a plant showing reddish streaks in the flesh. 

 ' ' 9 Four spores, x 400. 



PLATE 38. 



Hydnum repandum L. 



Spreading Hydnum. 



Figs. 1 and 3 Plants whose caps are of a pale color. 

 " 2 and 4 Plants whose caps are of a reddish color. 

 " 5 Vertical section of the cap and upper part of the stem of a plant. 

 ' ' 6 Four spores, x 400. 



