116 MurriLL: PoLypoRACEAE OF NorRTH AMERICA 
8. Pyropolyporus Underwoodii sp. nov. 
A blackish ungulate plant of large size with furrowed rimose 
surface and long brown tubes. Pileus woody, broadly ungulate, 
attached by a narrow base, concave below, 7 X 14 X II cm.; sur- 
face many times concentrically furrowed, rimose, uniformly dark- 
brown to black ; margin fulvous, acute or somewhat obtuse, vel- 
vety, undulate, marked with narrow zones: context hard, fulvous 
to dark brown, very thin, less than 0.5 cm.; tubes distinctly strati- 
fied, 0.5-1.5 cm. long each season, 3 to a mm., brown within, 
mouths darker, circular or polygonal, edges acute, entire: spores 
ellipsoidal, smooth, thin-walled, light yellowish-brown, 7 X 94, 
cystidia none. 
Collected by Underwood and Griggs during the summer of 
I90I near Coamo Springs, Porto Rico. The plant reminds one 
of P. Robiniae, but differs very widely in tube-structure, as well as 
in color, density and spore characters, 
9g. Pyropolyporus juniperinus (Schrenk) 
Polyporus juniperinus Schrenk, U.S. Dept. Agr. Veg. Physiol. 
Bull. 21: 9-16. pl. 7-4. 1900. 
So far as I know, there are only two specimens of the fruiting 
stage of this plant in existence, one collected by Schrenk in Ten- 
nessee and the other by Miss Sadie F. Price in Kentucky. The 
latter specimen, the better developed of the two, was sent to the 
Underwood herbarium in 1895. 
Both specimens were found upon /uniperus Virginiana, the 
wood of which is badly affected by its mycelium. The statement 
made by the author that the discovery of other specimens might 
prove this species to be only a form of P. fomentarius is entirely 
unnecessary, since such connection between two plants so distinct 
is beyond the range of possibility. 
10. Pyropolyporus Earlei sp. nov. 
A broadly ungulate plant with yellow pores, red context and 
a dark very rimose surface. Pileus woody, attached by a broad 
base, plane below, 6 X 13 X 17 cm.; surface concentrically 
sulcate, very rimose in older parts, fulvous to brownish-black, 
at length grayish-black from weathering ; margin broad, obtuse, 
dark yellowish-orange, clothed with short dense tomentum of the 
same color: context woody, dark reddish-orange, concentrically 
banded with darker lines, very thin, 0.5 cm., rimose down to the 
