310 SECTION HYGROPHORUS 



4. Lamellae distant; pileus slowly flushed yellow (see H. ligatus, 



not treated in this work) 



4. Lamellae close or subdistant; pileus unchanging 5 



5. Spores 8-10 X 5-6 /a; stipe 1-2 cm thick 189. H. subalpinus 



5. Spores 5.5-6(7) X 3.5-4 fx; stipe 4-6 mm thick 219. H. velatus 



6. Lamellae distinctively colored from the first 7 



6. Lamellae dingv to white or creamy white at first, changing color only 



in age or on drying 8 



7. Odor of dried peaches; lamellae bright pinkish cinnamon 



190. H. saxatilis 



7. Odor none; lamellae very pale yellow 191. H. karstenii f. minor 



8. Stipe staining yellow where injured 9 



8. Stipe unchanging 13 



9. Stipe 3-10 mm thick 10 



9. Stipe 10-20 mm thick 12 



10. Stipe apex fibrous-punctate, the punctae unchanging in KOH or 



when dried 192. H. tenax 



10. Stipe apex scurfy 11 



11. The scurfy punctae becoming quickly orange in KOH 



193. H. pseudochrysaspis 



11. The punctae yellowish in KOH 198. H. albicastaneus 



12. Stipe apex with scabrous points which become red-brown on drying 



204. H. pudorinus var. fragrans f. pallidas 



12. Stipe apex obscurely silky-fibrillose, unchanging on drving 



201.' H. sordidas 



13. Odor distinctly aromatic 14 



13. Odor not as above 15 



14. Pileus pallid, darkening to avellaneous, gills finally near clay color 



194. H. subpangens 



14. Pileus becoming pinkish tan on the disc; lamellae not changing ap- 

 preciably 195. H. pasillas 



15. Pileus and gills snow white and scarcely changing; under spruce and fir 



• 196. H. piceae 



15. If under conifers, the gills or pileus color changing from vouth to age 



16 



16. Pileus white, slowly pinkish and becoming streaked with reddish 



fibrils; stipe typically with a pseudorhiza 197. H. marianae 



16. Not as above 17 



17. Lamellae dark brown in age or when dried; pileus also discoloring to 



brown 198. H. albicastancas 



17. Not as above 18 



18. Spores 12-15 X 7-9 M 214. H. goelzii 



18. Spores smaller 19 



19. Pileus whitish, developing gray shades toward the margin; 



lamellae adnexed to adnate 199. H. marzuolus 



19. Not as above 20 



20. Caespitose as in Clitocybe; stipe twisted-striate, white-tomentose 



at base; lamellae slowlv tinged apricot 200. H. ellenae 



20. Solitary or gregarious; lamellae white or slightlv vellow in age. . . . 

 201 . H. sordidas 



