Murrill: Boletaceae of North America 157 



crassus to be recognized as distinct without the discovery of better 

 characters. 



Boletus lignatilis Berk. & Curt. Jour. Linn. Soc. 10 : 303. 1868. 

 Known only from Berkeley's very brief description drawn from 

 specimens collected on rotten wood in dense woods in Cuba. 

 The types at Kew add nothing to the description. 



Boletus Morrisii Peck, Bull. Torrey Club 36: 154. 1909. De- 

 scribed from specimens collected in sandy soil under scrub oaks at 

 Ellis, Massachusetts. It is closely allied to C. crassus, but is said 

 to be well marked by its dotted stem. I have not seen the types. 



Boletus mutabilis Morg. Jour. Cincinnati Soc. Nat. Hist. 7 : 6. 

 pi. 1. 1884. Not ^Boletus mutabilis of Batsch and others. De- 

 scribed from Ohio. Types not seen. Peck's New York plants 

 of this name are either C. sordidus or Tylopilus felleus. 



Boletus nebulosus Peck, Ann. Rep. N. Y. State Mus. 51 : 292. 

 1898. Described from mature specimens collected on shaded 

 roadside banks near Raybrook, New York. It has points in com- 

 mon with C. sordidus and Tylopilus felleus. 



Boletus Pocono Schw. Trans. Am. Phil. Soc. 4: 154. 1832. 

 Described from specimens collected in beech woods in the Pocono 

 Mountains, Pennsylvania. Types destroyed and description in- 

 adequate. 



Boletus radicosus Bundy, Geol. Wisconsin 1 : 398. 1883. 

 Bundy's specimens are not in existence. 



Boletus rimosellus Peck, Bull. N. Y. State Mus. 2 : 127. 1889. 

 Described from notes and one dried specimen collected by C. J. 

 Curtis in North Carolina. Type not found. 



Boletus robustus Fries, Nov. Symb. 1: 46. 1851. Described 

 from specimens collected by Oersted in volcanic soil on the Irasi 

 volcano, Costa Rica. The drawing made by Oersted represents 

 an undeveloped specimen, which might be almost any species. 

 The specimens preserved in spirit could not be found at Copen- 

 hagen. 



Boletus rubinellus Peck, Ann. Rep. N. Y. State Mus. 32 : 33. 

 1879. Described from Gansevoort, New York. The description 

 and the type plants indicate points in common with C. communis 

 and C. piperatus, and it is desirable to study fresh specimens 

 before deciding whether it should be kept distinct or referred to 

 one of these species. 



