Si BSi CTlOh XilCROSPORl 9 I 

 SERIES MICROSPOR1 



KFV id Sri < us 



1. Odor distinctive, fragrant to offensive 2 



1. Odor not distinctive 3 



2. Lamellae broad; pileus smokv brown to blackish 



27. //. peckianus 



2. Lamellae narrow; pilens yellowish becoming gray, 



fading to whitish 2S. //. paupettifltU 



3. Lamellae pale drab to deep bluish gray at first 1 



3. Lamellae white to pallid at first 8 



4. Clamps absent from hvphae of fruiting body; spores 5-6 X 4-5 /x. . . 



'. , ' 29. //. fattax 



4. Clamps present; spores slightly narrower than in above 5 



5. Stipe white; gills drab; pilens gray-brown 30. //. basidiosua 



5. Stipe violaceous gray; gills bluish gray; pilens violaceous gray to viola- 

 ceous brown, canescent 31. H. canescens 



6. Spores (3)4-4.5 X 2.5-3 ^ 32. //. microsporia 



6. Spores larger 7 



7. Lamellae narrow; stipe white, unchanging 8 



7. Not as above 9 



8. Pileus grayish brown 33. H. alhijx s 



8. Pileus vinaceous buff, fading to a chalky white 34. H. silvatirus 



9. Basidia 46-62 X 5-7 /x; spores globose 35. H. umbrinus 



9. Basidia 32-47 X 5-6 ^; spores 4-5.5 X 3-6 ^ short ellipsoid 



36. H. obconicus 



27 



Hygrophorus peckianus Howe 



Torrey Bot. Club Bull. 5: 43. 1874 



Camarophyllus peckianus (Howe) Murr., North Amer. Flora 9: 389. 

 1916. 



Illustrations: 

 Fig. 8c. 

 Coker, Elisha Mitchell Sci. Soc. Jour. 64, pi. 16 (inset) . 



Pileus 1-3 cm broad, convex, mouse gray when dry, smoky brown 

 to blackish when wet, appearing smooth but minutely fibrillose under a 

 lens, margin even or wavy. Context whitish to grayish, fragile; odor 

 strong, offensive, taste slight. 



Lamellae adnate to arcuate-decurrent, pallid to white at first, soon 

 pale gray, subdistant, broad, thick. 



Stipe 1-3 cm long, 1.5-2 mm thick, white-pruinose above, else- 

 where glabrous, dark below, tapering downward, hollow. 



Spores 4-5 x 3.5-4.5 /x, subglobose to globose, more rarely short- 

 ellipsoid, smooth, yellowish in Melzer's reagent. Basidia 28-38 X 4-6 /a, 

 4-spored. Gill trama interwoven, hvphae 3-8 ^ broad. Pileus trama ho- 



