Murrill: Light-Colored Resupinate Polypores 305 



39. Poria hymeniicola sp. nov. 



Appearing in circular patches on the hymenium of a dead 

 Tyromyces and increasing to 2 cm. or more in diameter, con- 

 tinuous, inseparable, rather thick ; margin cottony, conspicuous, 

 pure-white even in dried specimens ; context white, scarcely vis- 

 ible as a membrane but filling many of the tubes of the Tyro- 

 myces; hymenium uneven, white, glistening; tubes angular, thin- 

 walled, reaching 2 mm. in length, about 5 to a mm. at maturity, 

 a few considerably larger, edges entire to slightly toothed ; spore 

 characters not satisfactorily obtained. 



Type collected on old hymenophores of a species of Tyromyces 

 attached to a dead poplar trunk at " Camp Sunday, v Medford 

 Township, Maine, August 28, 1905, W. A. Murrill 1920. 



40. Poria separans sp. nov. 



Widely effused, continuous, separating smoothly from the sub- 

 stratum, rather thick ; margin thin, cottony, white to cream- 

 colored, scarcely apparent in old specimens ; context a thin, tough, 

 persistent, white membrane; hymenium very even, glistening, 

 white to cream-colored; tubes thin-walled but not collapsing, 

 regular in shape and size, reaching 2 mm. in length, concolorous 

 within, angular, 4 to a mm., edges fimbriate-dentate ; spores sub- 

 globose, hyaline, smooth, 5 fi. 



Type collected on a dead log at East Hebron, New Hampshire, 

 July 6, 1 91 7, by Percy Wilson. 



41. Poria roseitingens sp. nov. 



Appearing in small, irregular patches on the bark and becoming 

 several centimeters in extent by growth and confluence, insep- 

 arable, thin ; margin filamentous, appressed, pure-white even in 

 dried specimens, conspicuous in age ; context white, a mere mem- 

 brane ; hymenium only tolerably even, milk-white when fresh, 

 pale-rosy-isabelline when dry, except on the margin; tubes rather 

 firm, very irregular in size, mostly 3 to a mm,, but often 1 mm. 

 broad or larger, concolorous within, angular, thin-walled, edges 

 entire to toothed or somewhat lacerate; spores copious, ellipsoid, 

 hyaline, smooth, 3-4 x 2-2.5 V s " 



Type collected on a dead corticated log of Pinus Massoniana 

 at Cinchona, Jamaica, 5,000 ft. elevation, December 25-January 

 8, 1908-9, W. A. & Edna L. Murrill 40 J. 



