7 3o • THE AGARICACEAE OF MICHIGAN 



the leaves, etc.. to which it is attached. SPORES broadly-elliptical 

 to subglobose, 5.5-6x4 micr., smooth, white. ODOR and TASTE 



mild." 



Subcaespitose. Among leaves, etc., in woods. Reported by Long- 



year. 



The cartilaginous stem and broader spores separate it from G. 

 dealbata and the other Clitocybes. In the character of the stem 

 it approaches the genus Omphalia. 



769. Clitocybe dealbata Fr. 



Syst. Myc, 1821. 



Illustrations : Cooke, 111., PL 104. 



Gillet, Champignons de France, PL 111. 



PILEUS 1-4 cm. broad, convex then expanded, depressed in 

 center, or umbilicate, glabrous, even, dry, shining -white, margin 

 undulate and becoming recurved or ascending, very thin. FLESH 

 white, thin. GILLS adnate then subdecurrent, persistently white, 

 rather narrow, crowded, thin, edge entire or minutely erose. STEM 

 2-3 cm. long, 2-5 mm. thick, rather slender, stuffed then hollow 

 and often compressed, white to pallid, tough and fibrous, straight, 

 glabrous, even, equal, base oblique and villose, apex subpruinose. 

 SPORES narrowly elliptical-oval, 4-5.5x2.5-3 micr., apiculate, 

 nucleate, smooth, white; basidia 4-spored. ODOR and TASTE 

 mild. 



(Dried: Cap buff-white, gills whitish, stem sordid.) 



Subcaespitose, usually in twos as figured by Cooke. Attached to 

 decaying leaves in pastured woods of deciduous trees; also on 

 lawns and pastures. Ann Arbor, etc. September-November. Fre- 

 quent. 



This species is known by its persistently white cap and gills, 

 small size, etc. The tendency of mycologists to describe new varie- 

 ties of it. shows that it varies considerably. Peck has named a 

 variety growing in mushroom beds var. deformata. The above de- 

 scription applies to the Ann Arbor form. It is very probable that 

 there are intermediate grades between this species and C. candicans. 

 Our plants were thin, and hence more like G. candicans. The two 

 differ from such species as G. alUssima Pk. and G. phyllophila Fr. 

 in the entire absence of a yellowish color in cap or gills when old or 

 dried. The stem is toughish-fibrous instead of cartilaginous as in 

 G. candicans; the other points of difference are italicised, but may 



