146 



Mycologia 



the stem white. Described from Vermont, and found commonly 

 in open woods throughout eastern continental North America 

 from Nova Scotia to Mississippi. I find also in the herbarium a 

 handsome specimen of this plant mixed with certain of Baker's 

 collections from Stanford University, California. S. Kawamura, 

 in a recent number of the Botanical Magazine of Tokyo (22 : 

 (329). 1908), mentions this species as occurring in Japan, but 

 I have not seen his specimens. 



7. Ceriomyces scaber (Bull.) 

 Boletus scaber Bull. Herb. Fr. pi. 132, f. 1. 1782. 

 Boletus aurantiacus Bull. Herb. Fr. pi. 236. 1784. 

 Boletus niveus Fr. Obs. Myc. 1: 111. 1815. 



Leccinum aurantiacum S. F. Gray, Nat. Arr. Brit. PI. 1 : 646. 182 1. 

 Leccinum scabrum S. F. Gray, Nat. Arr. Brit. PI. 1 : 647. 1821. 

 ? Boletus versipellis Fries, Boleti 13. 1835. 

 Krombholzia scabra Karst. Rev. Myc. 3 9 : 17. 1881. 

 Gyroporus scaber Quel. Ench. Fung. 162. 1886. 



Described from France and common in various habitats, espe- 

 cially in and near woods, throughout Europe and North America. 

 It is one of the best known and most abundant of all the boleti. 

 The scabrous stem and the unchanging white flesh and tubes 

 should distinguish it, in spite of the variable colors of the cap. 

 Boletus versipellis of Fries (Boleti 13. 1835) seems only a va- 

 riety with reddish cap and appendiculate margin. 



8. Ceriomyces conicus (Rav.) 



Boletus conicus Rav. Ann. Mag. Nat. Hist. II. 12 : 430. 1853. 



Known only from specimens collected by Ravenel in damp pine 

 woods in South Carolina. The sporophore is small, having a 

 conical cap adorned with appressed yellowish flocci, and the tubes 

 are flesh-colored. I have examined the types at Harvard, and 

 Dr. Farlow has kindly made for me an examination of their 

 spores, which measure 14-16 X 5-6 fi. 



9. Ceriomyces Vanderbiltianus (Murrill) 



Boletus Vanderbiltianus Murrill, Torreya 8: 215. 1908. 



Described from specimens collected by the writer on the road- 

 side in thin oak woods in Pink Bed Valley, North Carolina. The 



