R] POR I ON EDIB1 l l i M.I [895 99 165 



its longer, hollow bulbous stem and by its place of growth. It is more 

 closely allied to the abrupt mushroom, from which it is separated 1>\ its 

 simple collar and by the oval bulb at the base of the stem. It grows in 

 woods and groves and appears in August and sometimes as late as Septem- 

 ber. Its cap is white and smooth, often shining and sometimes with a slight 

 yellowish tint, specially when old or dry. The flesh is rather thin and white. 

 In the European plant it is said to assume a slight, reddish tint on exposure 

 to the air, but 1 have not verified this character in our plant. In size and 

 mode of growth it is very similar to the abrupt mushroom. 



Hypholoma incertum /'/•. 

 Uncertain Hypholom \ 



PLATE 60, fig. I-q 



Pileus thin, fragile, at first ovate or subcampanulate, then broadly con- 

 vex, hygrophanous, whitish, often tinged with yellow, commonly white when 

 dry, the thin margin often wavy, lobed or irregular and in the young plant 

 adorned with fragments of the white, fioccose, fugacious veil, flesh white ; 

 lamellae thin, narrow, close, adnate, at first whitish, then purplish brown ; 

 stem equal, hollow, easily splitting, white or whitish ; spores elliptic, .0003 

 of an inch long, .0002 broad. 



The thin fragile cap is sometimes split on the margin. It has a moist 

 appearance when young and fresh, but this is lost with age and in dry 

 weather. The prevailing color is white, but a yellow tint is often added, 

 specially in the center. The surface is occasionally slightly radiately wrinkled. 

 The margin is sometimes curved upward, and a faint purplish tint, apparently 

 due to the color of the mature gills, is sometimes seen. In the young 

 plant fioccose fragments of the ruptured veil adhere to it, but these soon 

 disappear. 



The gills when young are nearly white, but they become darker with 

 advancing age and when fully mature are purplish brown. They are 

 attached to the stem by their entire width. 



The stem is slender, cylindric, hollow and white. The cap is 1 to 2.5 

 inches broad; the stem 1 to 3 inches long, 1 to 3 lines thick. It grows in 

 groups or in clusters in lawns, gardens, copses and pastures and may be found 



