188 FUNGUS-FLOEA. 



Among grass, under trees, &c. 



Clearly distinguished from C. dryoplilla by tlie broader, 

 thicker, less crowded gills ; and from C. xantho^oda by the 

 absence of an umbo. 



Collybia nummularia. Bull. 



Pileus about l-J- in. across, dry, flesh thin ; soon almost 

 plane and slightly dej^ressed round the umbo, even, pallid 

 or whitish, often variegated with reddish or yellow stains ; 

 gills free, broadest behind, rather distant, white; stem 

 1^-2 in. long, 1 line or more thick, often slightly thinner 

 downwaids, pallid, stuffed then hollow. 



Agaricus nummularius, Bulliard, Champ., t. 56 ; Cke., Illustr., 

 pi. 151b; Cke., Hdbk., p. 69. 



Among leaves. 



Distinguished by being entirely white or pallid, and by 

 the plane pileus being slightly depressed round the small, 

 obtu;se umbo. 



Collybia esculenta. Wulf. 



Pileus ^-| in. acro.^s, flesh thin, tough, white, pleasant 

 tasted ; convex then plane, orbicular, obtuse, glabrous, even, 

 or slightly striate when old, ochraceous-tan or brownish; 

 gills adnexed, often with a very minute decurrent tooth, 

 then seceding from the stem, very broad, almost obovate, lax, 

 rather distant, whitish or with a tinge of tan-colour ; stem 

 1-2 in. long, scarcely 1 line thick, tough, straight, in- 

 distinctly hollow, even, glabrous, rather shining, yellowish- 

 tan, ending in a long, perpendicular, usually glabrous, 

 rooting base. 



Agaricus escidentus, Wulf, in Jacq. Coll., xi. t. 14, f. 4; 

 Cke., Hdbk., p. 69; Cke., Illustr., pi. 152a. 



In woods, pastures, &c. 



Gregarious but never caespitose. C. tenacella is allied to 

 the present species, but diifers in the rooting base of the 

 stem being fibrillose, and in the snow-white gills. 



The root is sometimes 6 in. long, and downy when 

 growing amongst leaves, either perpendicular or flexuous. 

 Much eaten in Austria, wliere, in the beginning of Aj)ril 

 large baskets of io are brought to market under the name 

 of Nagelschwamme, which accords Avith Linneus's name 



