State Museum of Natural History. 83 



Clitocybe nebularis. 



A csespitose form of the sj)ecies was observed in the Catskill moun- 

 tains. Also a form iu which the whole plant is white. This is the 

 common form in these mountains. It has the same shape as the 

 typical form, from which it differs only in color. 



Clitocybe laccata, Scop. var. amethystina. 



Specimens of this beautiful variety were found at Menands and at 

 Karner in August. Two forms occui-, in both of which the pileus is 

 umbilicate and dark violaceous when moist, canescent or greyish 

 when dry ; in one the pileus is about one inch broad, convex and 

 regular ; in the other it is two to two and a half inches broad, and has 

 the margin reflexed and often much lobed and wavy. In this form 

 the lamell?e are broad, distant and often ruptured transversely. They 

 are also more highly colored than in the typical form. The ordinary 

 form has been found growing in circles in grassy places, 



Collybia lentinoides, Fk. 



A description of this species was published in the Thirty-second 

 Report. Two varieties have been observed the past season. 



Variety rufipes. Stem even, colored reddish-alutaceous like the 

 pileus. This variety closely resembles ordinary forms of Collybia dry- 

 ophila in color, and but for the serrated edge of the lamellae it might 

 easily be taken for that species. Albany Rural cemetery. June, 



Ya,xietj Jiaviceps. Pileus buff-yellow and striatulate on the margin 

 when moist, pale buff when dry ; stems cs^pitose, hollow, whitish. 



In all the forms the essential characters of the species are the glab- 

 rous, hygrophanous pileus, the lamellae with serrated edge and the 

 stuffed or hollow stem. 



Collybia rubescentifolia, FJc. 

 In the Thirty-ninth Report this species was referred to Tricholoma, 

 but subsequent observations indicate that it is a Collybia. The pileus 

 is pretty constantly umbilicate and is hygrophanous, being dingy- 

 yellow or smoky-yellow when moist and pale-yellow or buff when dry. 

 The change in the color of the lamellae in the dried plant is a marked 

 and constant character, and is suggestive of the specific name. The 

 species is closely allied to G. liUeoOlivacea B. & C, but no hygrophanous 

 character is attributed to that species nor any change in the color of 

 the lamellse. Besides, its stem is described as scurfy. 



