20 Peck: New Species of Fungi 



Stereum pulverulentum 



Resupinate, hard, adnate, tuberculose, crowded, appearing as if 

 confluent in a continuous stratum with the tubercles separated by 

 narrow cracks, the surface pulverulent, pale clay color inclining to 



wood-brown. 



papyrifera. Orono, Maine. Oc- 



tober. F. L. Harvey. 



Stereum ft 



are more crowded, smaller and thinner than in that species and 

 have no blackish margin. The pulverulence is more conspicuous 

 on the larger and thicker ones. 



Guepinia biformis 



Pileus stipitate, at first erect and cupulate, then curved to one 

 side, often split to the stem on one side and lobed on the margin, 

 tough, gelatinous and tremelloid when moist, tapering downward 



into the stem, minutely granulose tomentose or subvelvety and 

 grayish or dingy buff externally : the hymenium glabrous, even 

 or with a few folds or ridges radiating from the base, reddish- 

 brown : stems terete or compressed, tough or coriaceous, velvety 

 tomentose, grayish or dingy buff, often seriately confluent at the 

 base. 



Pileus 6-12 mm. broad : stem 4-10 mm. long, 2-4 mm. thick. 

 Decaying wood of deciduous trees. Ames, Iowa. September. 



Miss Alice Hess. 



M 



palmiccp 



it differs 



in color. The hymenium when moist resembles raisins in color 

 and when turned to one side it is strongly suggestive of the apo- 

 thecia of some species of Peltigera. The tomentum of the stem is 

 similar to that of the exterior surface of the pileus. 



Hypomyces volemi 



Subiculum very thin, whitish or isabelline : perithecia minute, 

 brown, nestling in the subiculum: asci very slender, 100-125 ju 

 long, sporiferous part, 4/1 broad : spores oblong fusiform, 12-15 (i 

 l°ngf 4 /'- broad, commonly binucleate. 



* 



Parasitic on the hymenium of Lactarius volemus. Pennsyl- 

 vania. Charles Mcllvaine. 



The hymenium of the host plant is changed in appearance by 

 the parasite, but the stem and uooer surfer* e* ri^ ~;i— 



unchanged. 



remain 



