182 



5. Pileus conic to convex, urabonate. C. badius Pk. 

 Pileus convex to expanded. C. castaneoid-s Pk. 



6. Pileus violaceous to brick-red. C. torvus Fr. 

 Pileus violaceous to grayish-red. C. torvus nobilis Pk. 



7. Lamellae linear ; pileus bay or brick red. C. Robinsonii Mont. 

 Lamellae broad. 8. 



8. Stipe yellow. C. paludosus Pk. 

 Stipe reddish, or whitish with two to four red zones. C. armellatus (A. & S. ) Fr. 



9. Lamellae purplish-brown ; pileus dark brown to pallid. C. adustus Pk. 

 Lamellae brown or yellow-brown. IO. 



10. Stipe long, 5-8 cm. ; pileus bay-brown to fulvous. C. distant Pk. 



Stipe shorter, 2^-5 cm.; pileus fuscous to ochraceous. C. furfurellus Pk. 



Leptophylli 



1. Stipe white or pallid. 2. 

 Stipe violescent. C. suhflexipes Pk. 

 Stipe brown. 3- 



2. Pileus blackish chestnut, paler when dry. C. nigrellus Pk. 

 Pileus watery cinnamon, paler when dry. C. lignarius Pk. 



3. Pileus densely fibrillate. C. kemitrichus (Pers. ) Fr. 

 Pileus canescent, then glabrate and rimose. C. ilipodius (Bull.) Fr. 



Dermocybe 



1. Lamellae at first white or pallid. 2. 

 Lamellae at first violet or purple. 5- 

 Lamellae at first yellow, red or cinnamon. 7. 

 Lamellae at first dark brown or olivaceous. 1 3. 



2. Pileus white or pallid. 3- 

 Pileus dark brown. 4- 



3. Lamellae crowded. C. ochroleuctis (Schaeff. ) Fr. 

 Lamellae subdistant. C. albidifolius Pk. 



4. Pileus subglabrous. C. sericeps Pk. 

 Pileus with minute brown scales. C. tigrinus Johns. 



5. Pileus grayish-violet when young. 6. 

 Pileus argillaceous. C. brevissinius Pk. 

 Pileus dark reddish-brown. C. anomalus Fr. 



6. Lamellae subcrowded. C. simulans Pk. 

 Lamellae distant. C. rimosus Pk. 



7. Lamellae and cortina red. 8. 

 Lamellae yellow or brown. 9. 



8. Entire plant cinnabar red. C. cinnabw inus Ft \ 

 Entire plant blood red. C. sanguineus ( Wulf. ) Fr. 



9. Pileus yellow. C. luieus Pk. 

 Pileus dark chestnut. C. castatifllus Pk. 

 Pileus cinnamon or tawny brown. 10. 



IO. Cortina forming a webby basal annulus. C. basalis Pk. 



Cortina not forming a basal annulus. II. 



