52 THE CHICAGO ACADEMY OF SCIENCES 



Hygrophorus pratensis Fr. 



Pileus somewhat pale-yellowish, compactly fleshy especially 

 at the disk, thin toward the margin, convex then flattened, almost 

 turbinate from the stem being thickened upwards, even, smooth, 

 moist (but not viscous) in rainy weather, when dry often rimosely 

 incised, here and there split regularly round; flesh firm, white. 



Lamellae remarkably decurrent, at first arcuate, then ex- 

 tended in the form of an inverted cone, very broad in the middle, 

 concolorous with the pileus. 



Stem stuffed, internally spongy, externally polished-evened 

 and firmer, attenuated downwards, smooth, naked. 



Pileus 2.5 to 5 cm. broad; stem 3.5 to 5 cm. long, a cm. or 

 more thick. Spores 6 to 10 x 4 to 6 /*. 



Grassy places in open woods, Glencoe. October. Whole 

 plant pallid-whitish, margin of pileus repand. 



Hygrophorus ceraceus Fr. 



Fragile. Pileus thin, convex-plane, obtuse, a little striate, 

 viscid, waxy, shining. 



Lamellae adnate, somewhat decurrent, distant, broad, almost 

 triangular, yellow. 



Stem hollow, unequal, waxy, shining. 



Moist woods. Millers, Indiana. Pileus about 2.5 cm. broad, 

 stem 3 to 5 cm. long, flexuous, yellow like the pileus. 



Hygrophorus cossus Fr. 



Pileus yellowish-white, disk somewhat ochraceous, fleshy, 

 convex-plane, obtuse, smooth, glutinous, shining when dry, 

 margin naked; flesh white. 



Lamellae adnate, decurrent, distant, connected by veins, firm, 

 white. 



Stem stuffed, soft, somewhat equal, furfuraceous and rough 

 with dotted points above, white or becoming tinged with yellow. 



Pileus 3.5 cm. broad; stem 5 to 7.5 cm. long, 4 to 10 mm. 

 thick. 



Woods, Glen Ellyn. September. Our plants arc somewhat 

 smaller than the dimensions given above, and shown in Cooke's 

 figure (Illust. PL 887). The pileus is 2.5 to 4 cm. broad, disk 

 flesh-color or pale reddish-yellow; lamellae white or with a slight 

 creamy-yellow tint; stem 2.5 to 5 cm. long, about 6 mm. thick, 

 concolorous with the lamellae viscid except at the apex where it 

 is dry and dotted or farinose. 



Hygrophorus virgineus Fr. 



Wholly white. Pileus fleshy, convex then plane, obtuse, 

 moist, at length depressed, cracked into patches, floccose when 

 dry. 



Lamellae decurrent, distant, rather thick. 



Stem curt, stuffed, firm, attenuated at the base, externally 

 becoming even and naked. 



