142 



Mycologia 



18. 



19. 



C. piperatus. 

 C. Curtisii. 

 C. inflexus. 



Stem furfuraceous, lilac-gray ; pileus 



and tubes chocolate-brown. 15. C. eximius. 



Stem smooth or reticulated; pileus 

 and tubes of lighter color 

 than above. 

 Spores brownish-ochraceous, 13- 

 15 X 4-5 M ; stem more or 

 less reticulated. 16. C. crassus. 



Spores ferruginous-ochraceous, 

 9-12 X 4-5 M ; stem rarely- 

 reticulated at the top ; pileus 

 often olivaceous and spotted. 17. C.affinis. 

 Tubes not stuffed when young. 



Pileus viscid, glabrous, small, yel- 

 low, sometimes more or less 

 reddish-brown ; stem not re- 

 ticulated. 

 Tubes brick-colored, flesh pep- 

 pery, stem solid, yellow at 

 the base. 

 Tubes yellow, flesh mild. 

 Stem hollow, glabrous. 

 Stem solid, dotted with yel- 

 low or red glandules. 

 Pileus glabrous or subtomentose, 

 not viscid. 

 Stem reticulated, usually very 

 distinctly so. 

 Pileus, tubes, and stem 



tawny-brown. 21. C. tabacinus. 



Pileus yellow or brown, 



tubes yellow. 22. C. retipes. 



Pileus red. 



Stem bright lemon-yel- 

 low throughout ; pi- 

 leus without a bloom. 23. C. speciosus. 

 Stem red below, yel- 

 low above ; pileus 

 with a bloom. 24. C. Peckii. 



Stem not reticulated, except 

 in forms of C. subtomen- 

 tosus. 

 Pileus glabrous. 

 Pileus red. 



Stem yellow, some- 

 times with red 

 stains ; entire 

 plant quickly 

 changing to blue 

 at any point 



