105 



40. Boletus pallidns; n. sp. 



Pileus at first convex, then flat, depressed, pallid brownish white, sometimes 

 with a tinge of red, \% to 43>^ inches broad. Tubes pale yellow, almost white, 

 separating easily from the pileus, not quite adnate, the part not so often tinged 

 with green. Stem whitish, streaked with brown lines, somewhat enlarged at 

 base, 3 to 5 inches long. Flesh white in pileus, tinged with red in stem, the 

 tubes changing to blue. Spores .0105-.0065 m. m. 



In woods. August aud September. 



41. Boletus sordidus, n. sp. 



Pileus pulvinate. dirty dark brown, subtomentose, about 2 inches broad. 

 Tubes at first white, long, not quite adnate, turning bluish green. Ste^n brown- 

 ish, streaked very dark, smaller as it enters the pileus, generally green around 

 the part not adnate. Flesh white, now and then tinged with green. Spores 

 .O12f6-.0O52 m. m. 



On recent excavations in woods. July. 



42. Boletus cliromapesj n. sp. 



Pileus flat convex, slightly tomentose, which is sometimes fasciculated, pale 

 vermilion, 2 to 3 inches broad. Tubes at first white, within light brown, after- 

 wards brown, half adnate. Stem whitish, colored by the brown yellowish 

 spores, near the apex with a slight tinge of vermilion, chrome yellow at base, 

 most often flexuous, thickened somewhat downwards. Flesh white, unchang- 

 ing. Spores .0126-.0052 m. m. 



In woods. July. 



43. Boletus versipellis, Fr. 44. Boletus sciiber, Bull. 

 45. Boletus felleus, Bull. 46. Boletus castaneus, Bull. 

 47. Boletus cyauescens, Bull. 



BUX. BUF. SOC. NAT. SCI. (14) JUNE, 1874. 



