Murrill: The Boleti of the Frost herbarium 523 



Boletus Satanus Lenz. 



This name appears in an annotated copy of the Amherst Cata- 

 logue in Frost's library. It is represented by three sheets, con- 



taining seven fair and three poor specimens, none of them distinct 

 from B. hiridus. 



Boletus scaber Bull. 



This exceedingly common species is represented by a sheet con- 

 taining two good plants, and another containing four very poor 

 specimens which are both moulded and eaten by insects. Some 

 of the specimens under B. versipellis also probably belong here. 



Boletus serotinus Frost. 



Represented by two sheets containing ten plants rather poorly 

 preserved, collected in 1862 on shady grassy ground late in au- 

 tumn. The description, habitat, and late habit, as well as the types 

 themselves, point to B. Clintonianus, from which this species can 

 hardly be distinct. 



Boletus sistotrema Fries. 



The single specimen bearing this name is so very poor that it 

 su ggests no comment. Frost evidently thought he had what Peck 

 "sted under this name in the 23d Report, which proved to be a 



BOLETU 



Pip, 



s sordidus Frost. 



Represented by four rather good plants collected on recently 

 ex cavated earth in woods in midsummer. 



B 0LETU 



s spadiceus Schaeff. 



Represented by a dozen fair to good specimens, all of which 

 a gree well with B. subtomentosns. B. spadiceus probably does 



not 



occur in America. 



speciosus Frost. 



B 0LETUS „ 



This handsome species is well represented by two fine plants 

 ^ in half and excellently preserved. Even the color and surface 

 "Meters of the stem are well shown. 



cha 



Bol 



ET us Spraguei Frost. 



^presented by two sheets, containing three mature specimens 

 a cluster of smaller ones, all well preserved. This species is 

 Paced by Professor Peck under his B. vermiculosus, which is, in 



and 



