State Museum of Natural History. 139 



by Armillaria mellea. These generally occur in company with the 

 normal form and apparently under the same conditions of soil, moist- 

 ure and temperature. They are suggestive of the name of the species. 

 Our plant is related to C. popinalis, from which it is distinguished by 

 its firmer less glabrous unspotted pileus, paler flesh and larger spores. 

 C. popinalis var. firmatus is more closely allied by its compact texture, 

 but its spotted pileus and umber-brown color both without and within 

 easily distinguish it. Our species has been found to be edible, but 

 its flavor is scarcely as agreeable as that of some other species. 



Clitopilus albogriseus, Pk. 



Pale-gray Clitopilus. 



Pileus firm, convex or slightly depressed, glabrous, pale-gray, odor 

 farinaceous; lamella? moderately close, adnate or slightly decurrent, 

 grayish, then flesh-colored; stem solid, colored like the pileus; spores 

 angular or irregular, .0004 to .0005 in. long, .0003 broad. 



Pileus 6 to 12 lines broad; stem 1.5 to 2.5 in. long, 1 to 2 lines thick. 



Woods. Adirondack mountains. August. 



Clitopilus micropus, Pk. 



Short-stemmed Clitopilus. 



Pileus thin, fragile, convex or centrally depressed, umbilicate, silky, 

 gray, usually with one or two narrow zones on the margin, odor farina- 

 ceous; lamellae narrow, close, adnate or slightly decurrent, gray, 

 becoming flesh-colored; stem short, solid, slightly thickened at the 

 top,pruinose, gray, with a white mycelium at the base; spores angular 

 or irregular, .0004 in. long, .00025 broad. 



Pileus 6 to 12 lines broad; stem 8 to 10 lines long, 1 line thick. 



Thin woods. Essex and Kensselaer counties. Aug. 



This species is closely allied to the preceding one, but may be sepa- 

 rated from it by its short stem and silky umbilicate subzonate pileus. 

 Both species are rare and have been observed only in wet, rainy 

 weather. 



2. Pileus hygrophanous. 

 Clitopilus subvilis, Pk. 

 Worthless Clitopilus, 

 Pileus thin, centrally depressed or umbilicate, with the margin 

 decurved, hygrophanous, dark-brown and striatulate on the margin when 

 moist, grayish-brown and silky-shining when dry, taste farinaceous; 

 lamellae subdistant, adnate or slightly decurrent, whitish when young, 

 then flesh-colored ; stem slender, brittle, rather long, stuffed or hollow, 



