36 NEW YORK STATE MUSEUM 



flesh pure white, taste farinaceous; lamellae close, adnate or 

 slightly decurrent, transversely venose, often anastomosing or 

 connected by veins, frequently eroded on the edge and sometimes 

 transversely split, whitish; stem irregular, sometimes com- 

 pressed, more or less confluent at the base, stuffed or hollow, 

 white, with a soft, pure white, downy tomentum below; spores 

 subglobose .00012— .00016 of an inch long, nearly as broad. 



On mushroom beds in a greenhouse. Newark, Wayne co. 

 March. 0. E. Clark and B. 0. Williams. The specimens grew 

 in mushroom beds made in a poorly lighted apartment, in which 

 a temperature of 55°-60° was maintained. These conditions 

 doubtless had some influence in causing the irregular, tufted 

 mode of growth. In their pure whiteness and in the tendency of 

 the gills to anastomose these mushrooms resemble Olitocybe 

 s i m 11 i s, but the thin pileus and the farinaceous taste and odor 

 indicate a relationship with O. dealbata so intimate that it 

 is recorded as a variety of it. That species is also sometimes 

 found growing in mushroom beds. 



Clitocybe multiceps Pk. 



A singular form of this species was found growing under a 

 flagstone in Newark by Mr B. C. Williams. In the effort to ex- 

 pand the pileus in the open air, the stem was greatly elongated. 

 In one specimen the stem was 13 inches long, in the other, 16. 



Clitocybe tortilis gracilis n. var. 



Pileus thin, convex and slightly umbilicate, becoming centrally 

 depressed or infundibuliform with age, irregular, striate on the 

 margin and reddish flesh color when moist, paler when dry; 

 lamellae broad, distant, adnate or decurrent, pruinose when old 

 and dry; stem slender. Arm, glabrous, hollow but the cavity small. 



Pileus 3-6 lines broad; stem 6-10 lines long, about .5 of a line 

 thick. Gregarious on moist, shaded ground. New York Botani- 

 cal garden. August. F. S. Earle. 



This differs from the typical form of the species in its more 

 slender stem, more distant lamellae and more funnel-form pileus. 



