122 THE CHICAGO ACADEMY OF SCIENCES 



Poria salmonicolor B. & C. 



Resupinate, thick, mycelium mouldy- white. 



Pores round, reddish, at length elongated and purple-fuscous. 



Effused for several centimeters, margins thin, center thick, of a 

 rich salmon color, at length brown. 



On dead Quercus(f), woods, River Forest. Prof. Harper. The 

 pore surface of our specimens is purplish-umber. 



Poria serena Karst. 



Broadly effused, immarginate, adnate, dry, arising from a 

 byssine, at length evanescent mycelium which creeps over the 

 matrix, white, yellowish when dried. 



Pores rather large, round or angulate, at length flexuous, 

 sublabyrinthine, 1 to 4 mm. long. 



Under side of a log, Glencoe. May. Harper and Moffatt. 

 On a stump in woods at Glen Ellyn, October. 



Poria xantholoma Schw. 



Widely effused, closely adnate, even, smooth, dry; the border 

 rather broad, velvety, yellowish. 



Pores minute, unequal, subrotund, obtuse, pale-yellowish. 



On a log, Millers, Ind. June, 1903. Harper. 

 Poria pulchella Schw. 



Resupinate-effused, unequal, subplicate, rugose, creeping, 

 determinate; margin undulate, tumid, substerile. 



Pores minute, regular, angulate, tubules suboblique, in super- 

 ficial ridges. The whole fungus golden. 



On a decaying log in woods at Riverside. October. De- 

 termined by Professor Burt. 



Poria spissa Fr. 



Widely effused, perennial, very hard, immersed, cinereous- 

 brown; the margin very narrow, inflexed. 



Pores minute, angular, obtuse, entire. 



On a fallen branch of Prunus serotinus, Jewell's grove, Wheaton. 

 April; on rotten log of Quercus, Riverside. October; on dead 

 fallen branch of Juglans nigra, Winnetka. May. The latter is 

 apparently the form described by Schweinitz (Syn. Car. p. 99), 

 as P. Juglandina. The pore-surface is lustrous, like that of 

 Polystictus versicolor. 



Poria ferruginosa Schrad. 



Effused, thick, firm, uneven, tawny, when mature brownish- 

 ferruginous with a sterile border. 



Pores medium sized, very long, subrotund and lacerate, 

 cinnamon. 



On a prostrate decaying trunk of Prunus serotina, Winfield. 

 Autumn. Effused to the extent of several meters. Surface very 

 uneven, here and there running over elevations of the bark and 



