132 C. H. Kaufman 



were larger than the typical size found by Fries, but he notes 

 that such extremes do occur. The rather stout and decumbent 

 stems soon become spongy-hollow and split easily in the longi- 

 tudinal direction. Spores measure 7-8.5 x 5-6 fx. This is my 

 first collection. 



CoRTiNARius DELiBUTUS Fr. (Myxacium). Infrequent, Leal. 

 On mosses under conifers. 



This differs from C. sphoerosporus Pk., which is similar and 

 occurs in Eastern United States, by its somewhat larger spores, 

 the white flesh of the pileus and in the gills which are not truly 

 violaceous in the young stage. Its gills are more crowded than 

 in the typical form, a form which is also reported by Fries, The 

 color of the pileus varies from ''mustard-yellow" (Ridg.) to 

 ''cream-buff." 



CoRTiNARius DiBAPHUS Fr. Rare. Tolland. Under spruce. 



CoRTiNARius DiLUTUS Fr. (Hydrocybe). Infrequent, Leal. 

 Tolland. On mosses under conifers. 



By reason of its strongly hygrophanous character, the pileus, 

 which is almost "chestnut-brown" when young and moist, fades 

 to a pale "cinnamon-buff" (R) as it develops and loses moisture. 

 The spores are spheroid, 6-7 x 6 ^t. Its nearest relative is 

 probably C. rubricosus Fr. 



CORTINARIUS ELEGANTioR Fr. Rare. Leal. Under alpine fir. 



This fine species was described by Fries from the mountains, 

 under fir. Our plants agree exactly with his account. Ricken 

 says the gills are broad, but such is not the Friesian description. 

 The spores measure 12-15 (16) x 8-9 ix. The variety from 

 frondose woods described in Agaricaceae of Michigan, I. 355, 

 probably belongs elsewhere. The Colorado plants have slightly 

 larger spores than any recorded by European authors, but mis- 

 interpretation of Fresian plants in the middle and south of 

 Europe, is to be expected. We have already in this country 

 three or four superficially similar, but really quite distinct 

 species. 



CORTINARIUS EVERNius Fr. (Tclamonia). Infrequent, Leal. 

 On mosses under conifers. 



Quite typical; but variations in size, and changes due to the 



