114 MurriLtL: PoLypoRACEAE OF NortH AMERICA 
specimen in the herbarium of the Division of Vegetable Pathology 
and Physiology of the U. S. Department of Agriculture. 
5. Pyropolyporus Everhartii (Ell. & Gall.) 
Mucronoporus Everhart Ell. & Gall. Journ. Myc. 5: 141-142. 
pl. 12. 1889. 
Xanthochrous Everharti Pat. Cat. Tun. 51. 1897. 
The type of this fungus is in the herbarium of the New York 
Botanical Garden. Since its discovery on the living trunk of a 
scarlet oak in New Jersey, it has been collected in several localities 
on various species of oak and occasionally on beech. Before its 
separation as a distinct species it had been confused with P. igwia- 
vius, which it outwardly resembles in some particulars. 
Coilections: New York (Ellis, Mrs. Ellis, Murrill), New Jer- 
sey (Ellis, Ely), Canada (Dearness), Indiana (Gentry), Pennsylvania 
(Herbst) and Delaware (Commons, Ellis N. A. Fungi no. 3303). 
6. Pyropolyporus Robiniae sp. nov. 
A large fungus with dark rimose surface and tawny hymenium 
very common on Rodinia pseudacacia. Pileus hard woody, dimid- 
iate, 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 sub- 
circular, dissepiments entire, equalling tubes in thickness: spores 
subglobose, smooth, thin-walled, ferruginous, copious, 4-5 #4, CYS- 
tidia none. 
This fungus was one of the first to be noticed by collectors in 
this country, but has been unnamed until the present time. 
Schweinitz called it Polyporus igniarius and remarked that it was 
“frequent especially on Rodinia’”’; Berkeley confused it with his 
P. rimosus described from Demerara and the Cape of Good Hope, 
and Cooke allayed Morgan’s anxiety by assigning it most positively 
to the same category. To be sure, it resembles P. rimosus Berk. 
from Demerara, but the two plants are entirely distinct in appeat- 
ance and shape and ?. rimosus lacks the decided imbricated-rimose 
effect so characteristic of our plaht. It was from the African 
plant, a different thing from P. rimosus, that the name rimosus must 
