SI BSJ CTION Pi VICEJ 197 



4. Pileus umbonate and disc' tending to grayish .... 1 L3. //. fornicattu 

 4. Pileus convex, sliiiiin'j; white and unchanging ...114. //. huronensis 



5. Pileus ferruginous; lamellae violaceous ( JS. //. troyantu 



5. Not as above 8 



6. Pileus fuSCOUS; spores SubgloDOSe and 3- L5 1-3.5 u 



115. H. subhtridtu 



6. Not as above 7 



7. Spores subglobose; cheilocystidia 16—141 • 6—16 //; pileus yellowish 



' 91. H. flavoluteus 



7. Not as above S 



8. Spores 2.-5—3.5 fx broad L16. //. subceraceus 



8. Spores broader 9 



9. Pileus gills and stipe blue to bluish drab 117. //. caerulescens 



9. Not colored as above LO 



10. Pileus bright to deep red when fresh 11 



10. Pileus not as above 11 



11. Stipe white or only the base splashed red to yellow; lamellae peach red 



IIS.//, taetissitnus 



11. Stipe red to yellow 12 



12. Spores subcylindric to somewhat allantoic!; stipe 2 mm thick .... 



119. //. subminiatus 



12. Spores ellipsoid to ovoid; stipe thicker 13 



13. Pileus with a well-developed gelatinous pelliele 50 /x or more thick 



120. //. puniceus 



13. Pileus with only a thin pelliele (10-25 /x thick) 121. //. marchii 



14. Stipe about 2 mm thick 122. H. mucilaginosus 



14. Stipe 5-12(16) mm thick 123. H. favescens 



111 



Hygrophorus albicarneus, sp. nov. 



Pileus 8-12 mm latus, convexus, albus demum rubicundulus, visci- 

 dus, glaber; caw olbida, odore et gustu mitis; lamellae decurrentes 

 demum adnato-decurrentes, pallido-rubicundulae, subdistantes, latae 



demum modice latae; stipes 2-3 cm longus, 2-3 mm crassus, pallidas. 

 siccus, aequalis; sporae 11-16 x 8 12 ^ ellipsoideae. Specimen tijpi- 

 cum in Herb. Univ. Mich.: ledum Mt. Hood Ore.. Mai/ 31, 1947, 

 W. B. Gruber. 



Pileus 8-12 mm broad, convex, expanding to broadly convex or 

 shallowlv depressed, white to pinkish, viscid, glabrous, margin even, 

 drying pallid to dingv pinkish buff. Context whitish, thick on disc, thin 

 elsewhere; odor and taste not distinctive. 



Lamellae decurrent to adnate-decurrent, white becoming pale 

 pink, transparent, subdistant, narrow to broad, edges even and not 

 gelatinous. 



Stipe 2-3 cm long, 2-3 mm thick, pallid to dingy, dry, equal, naked 

 to appressed-fibrillose, unchanging when dried. 



