SUBSECTION CAMAROPIIYLLI 395 



characters above is adapted from Peck's original account. His com- 

 ments follow: "This species is closely related to II. pustulatus Fr., hut 

 differs from it in the entire absence of pustules or papillae from the 

 uniformly colored pileus and in having a solid stem which, though 

 somewhat scurfy, is not rough or scabrous with black points. The 

 presence of concolorous papillae on the pileus and of black points on 

 the stem of H. pustulatus is given by Fries special emphasis in his 

 description of this species. In Icones he describes the lamellae as very 

 entire (integerrimae) which character is not applicable to our plant. 

 These differences seem to me too important to be disregarded and I 

 take pleasure in dedicating this interesting American species to 

 Mr. George F. Morris, who sent me numerous specimens of it in fine 

 condition." 



Murrill (1916) reduced H. morrisii to synonomy with H. hijpothe- 

 jus, but it seems closer to H. tephroleucus. Spore size suggests that 

 H. morrisii and H. fuscoalbus are also related. 



