NATURAL HISTORY SURVEY 107 



5. Surface of pileus sulcate 6 



6. Context stratose, ferruginous, pores 



cinnamon F. igniarius. 



6. Context stratose, and with the pores 



rhubarb-yellow F. Everhartii. 



6. Context obscurely stratose, pale-tawny, 



pores whitish F. fraxinophilus. 



6. Context obscurely stratose, fulvous or 



cinnamon, pores white F. scutellatus. 



7. Context and pores fulvous F. Ribis. 



Fomes lucidus Leys. 



Pileus corky then woody, flabelliform, sulcate, rugose, laccate, 

 shining, at first yellow then reddish-chestnut. 



Stipe lateral, equal, concolorous; pores determinate, long, 

 minute, white then cinnamon. 



At the base of stumps, usually of Quercus, in low woods. 

 Pileus 3 to 8 cm. long, stem 2 to 5 cm. long, occasionally much 

 shorter or wholly obsolete with age. In young plants the pileus 

 is subzonate, the margin pale ochraceous, the disk ferruginous- 

 tinted and the laccate crust not manifest. The laccate coating 

 of the pileus and stem is at first brownish-ochraceous, becoming 

 much darker as the plant matures. 



For a detailed study of this and allied species, with excellent 

 figures, see Atkinson, Bot. Gaz. 46: 321; our species being de- 

 scribed under the name Ganoderma pseudoboletum (Jacq.) Murrill. 



Fomes carneus Nees. 



Pileus effused-reflexed, woody, hard, thin, rugose, smooth, 

 azonate, flesh-color without and within. 



Pores minute, round, decurrent at the base. 



Pileus longitudinally effused, imbricated, rarely solitary, 

 8 to 10 cm. long, 2.5 to 4 cm. wide, 5 to 7 mm. thick. 



Xear the ground on decayed portion of a standing trunk, 

 woods, Glen Ellyn. September. Determined by Prof. Harper. 

 Often cited as a synonym of F. roseus Alb. & Schw. Professor 

 Peck considers the two species distinct, the latter being a thicker 

 ungulated plant with a crust. See Lloyd, Myc. Notes, No. 29. 



Fomes fraxineus Bull. 



Pileus corky-woody, glabrous, somewhat applanate, whitish, 

 then reddish and brown, at first even, then concentrically sulcate- 

 plicate, pallid within. 



Pores minute, short, reddish at first, as well as the margin 

 covered with a white sebaceous down. Odor strong and pene- 

 trating. 



On stumps. River Forest, Harper; near the ground on a 

 standing trunk, Glen Ellyn. Moffatt. Unfortunately both 

 collectors failed to record the species of tree on which the speci- 

 mens were found. It is said to grow on Fraxinus americana. 



