Lactarius boughtoni Pk. 



BOUGHTON LACTARIUS 



1 Young plant 



2 Middle-aged plant 



3 Mature plant 



4 A'ertical section of upper part of a \oung ])lant 



5 \'ertical section of upper part of a mature plant 



6 Transverse section of a stem 



7 Four spores x 400 



D4 



