56 



NEW YORK STATE MUSEUM 



II Pileus subfleshy to membranous ; stipe smooth 

 pruinose, or subtomentose ; lamellae squarely 

 adnate or decurrent, free in a few small 

 plants with tomentose stipe 

 Pileus white 

 Lamellae decurrent 

 Pileus papillate 



Spores 10 ,a or more long 21 M 



Spores less than 10 /z long 



Lamellae close 27 M 



Lamellae distant 22 M 



Pileus not papillate 

 Lamellae broad 

 Stipe bulbous ; growing upon soil and 



buried twigs; spores 7-9 ,a long..,, 23 M 

 Stipe increasing upward; growing 

 upon wood or other vegetable de- 

 bris ; spores 10-12 // long 21 M 



Lamellae narrow 



Lamellae and stipe with minute resin- 

 ous particles or hairs 24 M 



Lamellae and stipe without resinous 



particles or hairs 25 M 



Lamellae not decurrent 



Cystidia present 29 M 



Cystidia absent 



Spores irregularly angular 26 M 



Spores not angular 



Odor strong 28 M 



Odor not strong 

 Stipe hollow, base swollen above and 



contracted to a point below 31 M, 



Stipe of uniform thickness 



Stipe very short, upon herbaceous 



plants in swamps 30 M 



Stipe not very short 



Pileus not distinctly striate or 

 plicate 



Stipe pallid 32 M 



Stipe becoming reddish S3 M 



Pileus distinctly striate or pli- 

 cate 

 Lamellae narrow, adnexed.. 34 M. 



Lamellae broadly adnate 35 M, 



Pileus not white 

 Lamellae decurrent 



Pileus yellow to ferruginous 36 M . 



Pileus not yellow or ferruginous 

 Stipe glabrous above 37 M . 



magnisporus 



p a p i 1 1 a t u s 

 1 a n g u i d u s 



V i a 1 i s 



magnisporus 



resinosus 

 s a 1 i g n u s 

 s q u a m u 1 a 

 n i g r i p e s 

 perforans 



praeacutus 



caricicola 



o p a c u s 



r a m u 1 i n u s 



phyllophilus 

 i n s i t"i t i u s 



tomentosipes 

 a 1 i e n u s 



