MURRILL : BOLETACEAE OF NORTH AMERICA 



11 



i. Boletus luteus L. Sp. PL 1177. 1753 

 Boletus annulatus Pers. Syn. Fung. 503. 1801. 

 Tubiporus annulatus Paul. Traite Champ, pi. 166 (bis.). 1812- 



Boletus Elbensis Peck, Ann. Rep. N. Y. State Mus. 23: 129. 



1872. (Type from Elba, New York.) 

 Boletus salmonicolor Frost, Bull. Buffalo Soc. Nat. Hist. 2 : 100. 



1874. (Type from Vermont.) 

 Cricunopus luteus Karst. Rev. Myc. 3 9 : 16. 1881. 

 Viscipellis luteus Quel. Ench. Fung. 155. 1886. 

 Boletus subluteus Peck, Bull. N. Y. State Mus. i 2 : 62. 1887. 



(Type from New York.) 

 Ixocomus luteus Quel. Fl. Myc. Fr. 414. 1888. 

 Boletus acidus Peck, Bull. N. Y. State Mus. no. 105: 15. pi. T. f. 



1-6. 1906. (Type from Port Henry, New York.) 



This species is well known and widely distributed, occurring 

 commonly in sandy soil in coniferous or mixed woods through- 

 out the eastern United States and Europe, and probably extend- 

 ing around the globe in temperate regions. The cap is smooth, 

 yellowish-brown, and very viscid ; the tubes and stem are yellow, 

 the latter glandular-dotted and also provided with a large annu- 

 lus, which is the chief character distinguishing it from R. granu- 

 latus. 



2. Boletus amabilis Peck, Bull. Torrey Club 27: 612. 1900 

 Described from specimens collected by Bartholomew in dense 



spruce woods in Colorado. The cap is glabrous, reddish-tawny, 

 and probably viscid when fresh; the tubes short, yellow, some- 

 what radiating, and decurrent ; and the stem subequal, paler 

 than the cap, and reticulate above the small whitish annulus. 

 No. 340 of Clements' Crypt. Form. Colorad., distributed as 

 " Boletus bovinus unicolor (Frost)," may be this species, but I 

 have not seen satisfactory material of it, nor have I seen the 

 type of B. amabilis. 



3. Boletus sphaerosporus Peck, Bull. Torrey Club 12 : 33. 



i88 S 



This rare species was described from material collected near 

 Madison, Wisconsin, by Trelease. It is known to occur also 



