SOUTHERN POLYPORES 51 



brown, cylindric, stratose, usually thick-walled; spores smooth, 

 ferruginous or fulvous. 



Context fulvous; found on Robinia. i. F. Robiniae. 



Context dark-reddish; found on Juniperus. 2. F. juniperinus. 



i. FULVIFOMES ROBINIAE Murrill 



Pileus dimidiate, ungulate to applanate, 5-25 X 5-50 X 2-12 

 cm.; surface velvety, smooth, soon becoming very rimose and 

 roughened, fulvous to purplish-black, at length dull-black, 

 deeply and broadly concentrically sulcate; margin rounded, 

 velvety, fulvous; context hard, woody, concentrically banded, 

 1-3 cm. thick, fulvous; tubes stratose, 0.15-0.5 cm. long, 5 to a 

 mm., fulvous, mouths subcircular, edges entire, equaling the 

 tubes in thickness; spores subglobose, smooth, thin-walled, 

 ferruginous, 4-5 /*. 



Common throughout the range of its host, Robinia Pseudacacia, 

 causing a very serious rot of this tree. The hymenophores were 

 formerly used by colored people for keeping fire over night. 



2. FULVIFOMES JUNIPERINUS (Schrenk) Murrill 



Pileus ungulate, 3-5 X 5-8 X 5-7 cm.; surface tomentose, 

 deeply sulcate, reddish-brown to dark-brown; margin obtuse, 

 velvety, melleous or ferruginous to hoary; context woody, 

 reddish-brown, 0.5-2 cm. thick; tubes indistinctly stratified, 

 0.5-1 cm. long each season, melleous within, reddish-brown in 

 the older layers, mouths circular, 2-3 to a mm., edges obtuse, 

 entire, even, melleous; spores fulvous, smooth, globose or sub- 

 globose; cystidia few, subhyaline, 100 X 20 /*. 



Occasional on living trunks of Juniperus in Tennessee and 

 Texas. The rot is better known than the fruit-body. Pyro- 

 polyporus Earlei Murrill is probably not distinct. 



35. PORODAEDALEA Murrill 



Hymenophore large, perennial, epixylous, sessile, conchate to 

 ungulate; surface anoderm, sulcate, usually rough; context brown 

 and woody; tubes concolorous, rarely in distinct layers, the 

 hymenium varying from porose to daedaleoid; spores smooth, 

 hyaline at maturity, becoming brownish with age; cystidia 

 conspicuous. 



i. PORODAEDALEA PINI (Thore) Murrill 



Pileus hard, typically ungulate, conchate or effused-reflexed 

 in varieties, often imbricate, 5-8 X 7-12 X 5-8 cm., smaller in 



