THE FUNGI WITH TEETH 447 



Hydnum graveolens. Del. 

 Fragrant Hydnum. 



Graveolens means sweet-scented. 



The pileus is coriaceous, thin, soft, not zoned, rugose, dark-brown, brown 

 within, margin becoming whitish. The stem is slender and the spines are de- 

 current. The spines are short, gray. 



The whole plant smells of melilot ; even after it has been dried and kept for 

 years it does not lose this scent. 



I found two specimens in Haynes's Hollow. 



Irpex. Fr. 



Irpex, a harrow, so called from a fancied resemblance of its teeth to the 

 teeth of a harrow. It grows on wood ; toothed from the first, the teeth are 

 connected at the base, firm, somewhat coriaceous, concrete with the pileus, 

 arranged in rows or like net-work. Irpex differs from Hydnum in having the 

 spines connected at the base and more blunt. 



Irptx carnens. Fr. 



This plant, as its specific name indicates, resembles the color of flesh. Red- 

 dish, effused, one to three inches long, cartilaginous-gelatinous, membranaceous, 

 adnate. Teeth obtuse and awl-shaped, entire, united at the base. Fries. 



Found on the tulip-tree, hickory, and elm. September and October. 



Irpex lac tens. Fr. 



Growing on wood, membranaceous, clothed with stiff hair, more or less 

 furrowed, milk-white, as its specific name indicates. 



The spine* are compressed, radiate, margin porus. Found on hickory and 

 beech logs and stumps. 



