Mycological Flora of the Rockies 127 



Clitocybe sordarius (Fr.) (Paxillus sordarius Fr.). Rare. 

 Tolland, On banks, attached to very rotten wood. Spores 

 narrow, subfusiform, hyaline, 8-9 x 3.5-4 fx. 



Clitocybe tornata Fr. Infrequent, Tolland. On decayed 

 wood. 



CoLLYBiA ACERVATA Fr. Infrequent, Leal, Tolland. 



On much-decayed wood of conifers, forming dense subcon- 

 fluent, caespitose clusters of many individuals. The conception 

 of this species as described in Agaricaceae of Michigan, I. 759, 

 is entirely erroneous, by the fact of its very incompleteness. 

 The species would not be recognizable by that description, or 

 indeed by that of many other books. Even Fries did not put 

 sufficient emphasis on the densely caespitose character of the 

 stems, with which many of the other characters are correlated. 



CoLLYBiA ALBiFLAViDA (Pk.) Kauff. var. montana var. 

 nov. Rare. Tolland. Among grass in meadow, edge of 

 coniferous forest. 



This departs from the species in its somewhat broader 

 gills, 6-10 mm. broad, which become ''pale ochraceous- 

 orange" (Ridg.), and the spores measure 8-9 (10) x 5-6 (6.5) 

 jd. In stature, habit and the presence of cystidia, and 

 the other characters, it corresponds to the well-known eastern 

 species. 



CoLLYBiA BUTYRACEA Fr. Not Seen after August, Tolland. 



CoLLYBiA ciRRATA Fr. Infrequent. Leal. On debris of 

 conifer needles. 



CoLLYBiA COLOREA Pk. Rare. Leal. On conifer log. 



CoLLYBiA coNFLUENs Fr. Frequent, Leal. On ground in 

 woods. 



CoLLYBiA DRYOPHiLA Fr. Frequent. Leal. Under spruce 

 and fir. 



CoLLYBiA TUBEROSA Fr. Frcqucut, Tolland. On decaying 

 fungi. 



CoLLYBiA TENuiPES (Schw.) Sacc. Infrequent. Tolland. 

 Attached to wood. 



CoLLYBiA VELUTiPEs Fr. Infrequent, Tolland. On wood of 

 Salix, etc. 



