Agaricacese 



Boibitius. more narrow, pale-yellow with a darker edge. Stem long, equal, smooth, 

 striate at the top, hollow, white. 



Plant cespitose, 3-5 in. high. Pileus I in. broad. Stem I line thick. 

 Ground in woods. Greig. September. 



A fine large species, but probably rare. Peck, 24th Rep. N. Y. 

 State Bot. 



I have not seen this species. Figure after Professor Peck. 



CREPIDO'TUS Fr. 



Gr. a slipper. 



Crepidotus. Veil wanting or not manifest. Pileus eccentric, lateral or resupinate. 



(Plate LXXXI.) 



Spores rust-color. 



The Crepidoti correspond in shape 

 and habit to the smaller Pleuroti and 

 the Claudopodes, but they are dis- 

 tinguished from both by the rust-color 

 of their spores. These are globose 

 in several species, in others they are 

 elliptical. In some there is a depres- 

 sion on one side which gives them a 

 naviculoid character and causes the 

 spore to appear slightly curved when 

 viewed in a certain position. In con- 

 sequence of the similarity of several 

 of our species, the character of the spores is of much importance in 

 their identification, and it is unfortunate that European mycologists 

 have so generally neglected to give the spore characters in their 

 descriptions of these fungi. In most of the species the pileus is at first 

 resupinate, but it generally becomes reflexed as it enlarges. It is gen- 

 erally sessile or attached by a mass of white fibrils or tomentum. For 

 this reason it is usually somewhat tomentose or villose about the point 

 of attachment, even in species that are otherwise glabrous. In several 

 species the pileus is moist or hygrophanous and then the thin margin is 

 commonly striatulate. This character is attributed to but one of the 



304 



CREPIDOTUS MOLLIS. 

 Natural size. 



