522 MuRRiLL : The Boleti of the Frost herbarium 



Boletus Ravenelii B. & C. 



There is one sheet with seven excellent specimens, in which 

 even the colors are well preserved. Above " B. siibchromeiis 

 Frost " is written " B. Ravenelii B. & C. first by publication." . 



Boletus retipes B. & C. 



In a copy of his Catalogue presented to Mr. C. G. Pringle in 

 1876, this name is scratched and replaced by B. oniatipes, with the 

 statement that '' B. retipes is not a good Vermont species." See 

 remarks under B. edulis. 



Boletus robustus Frost. 



Represented by three good plants collected in 1862 in the 

 borders of shady woods. A full description accompanies the speci- 

 mens. On account of Boletus robiistns Fries, described earlier from 

 Costa Rica, Peck assigned a new name, B. exiviius, to this species. 



Boletus Roxanae Frost, 



Four fair specimens with full description and an outline sketch 

 appear on one sheet. Another sheet has four good specimens, 

 and still another contains five in fair condition, at least one of which 

 is B. castatiens. This same sheet contains also a good specimen 

 of the yellow-stemmed variety of B. Roxanae, first reported by Peck 

 as B. siilfiirens and later changed to var. auricolor. B. multipunctus 

 Peck is probably not distinct from B. Roxanae. (Plate 39.) 



Boletus rubeus Frost. 



Frost found this species in deep woods. There are three 

 sheets, containing eight good plants and four rather poor ones. 

 A study of these various specimens in connection with the de- 

 scription shows the species to be too near B. bicolor to be regarded 

 as distinct. 



Boletus Russellii Frost. 



This handsome species is represented by three excellent large 

 plants and five specimens only fairly well preserved. They were 

 collected in moist woods in 1862. (Plate 40.) 



Boletus salmonicolor Frost. 



Represented by twelve poor specimens collected in the borders 

 of pine woods. This species is apparently synonymous with B. 

 luteiis. 



