Murrill: Light-Colored Resupinate Polypores 83 



A fine Ohio specimen sent by Morgan to Underwood in 1894 

 is apparently attached to a portion of a young oak log with the 

 bark still on it. It is now uniformly avellaneous except at the 

 very narrow margin, which is whitish. In the same year, Under- 

 wood collected the species at Fern,. Putnam Co., Indiana, but 

 never named it. 



The specimens issued by Ellis and Everhart as Porta cinerea 

 in N. Am. Fungi 2306 were collected by Calkins in Florida, near 

 Jacksonville. They mention No. 440 as a synonym, distributed 

 as P. argillacea Cooke. There is a separate specimen so named 

 in the Ellis Collection collected on rotten wood near Philadelphia 

 in November, 1885, by Gentry. 



Specimens collected by me (No. 2517) near Willimantic, Maine, 

 in September, 1905, grew on a dead beech log. They were white 

 with a slight cinereous cast when fresh, and are now avellaneous 

 like those of Morgan. 



Caloporus expallescens P. Karst., described from Finland, on 

 birch wood, somewhat resembles this species. Its hymenium is 

 primordial and difficult to compare. 



7. Poria argillacea (Cooke) Sacc. Syll. Fung. 6: 321. 1888 



Polyporus argillaceus Cooke, Grevillea 7:1. 1878. 



The type collection was made by Harkness on rotting oak 

 wood in the Sierra Nevada, California, at an altitude of 2,500 

 feet. A specimen from Harkness in the Ellis Collection was 

 collected on rotten logs of oak at Colfax, which agrees with the 

 Harkness Catalogue. Cooke had two numbers from Harkness, 

 958 and 1000, one on oak and the other on Pinus Lambertiana. 

 I have seen both at Kew and my notes read : " The one on pine is 

 probably different. Leave it out." As the oak is mentioned 

 first, the specimen growing on it would be the type. 



8. Poria umbrinescens sp. nov. 



Irregularly effused, not always continuous, inseparable, thin. 

 5 cm. or more broad ; margin conspicuous, broad, thin, delicate, 

 sterile, white to slightly yellowish-discolored, consisting of 

 minute, spreading, interwoven mycelial threads ; context scarcely 



