226 NEW YORK STATE MUSEUM 



FIGURE 



Boletus edulis clavipes Pk. 



Club stemmed Boletus 



i, 2 Two young plants, one showing the lower surface of the cap . 



3 Immature plant 



4 Mature plant of small size 



5 Mature plant of large size with stem reticulated at the top only 



6 Vertical section of the upper part of a young plant 



7 Vertical section of the upper part of a mature plant 



8 Four spores X 400 



