120 MuRRILL: POLYPORACEAE OF NorTH AMERICA 
types in all important particulars. The same species from Cuba 
is labelled P. pectinatus Kl. at Kew, though the latter plant does 
not, to my knowledge, occur in North America. 
18. Pyropolyporus Jamaicensis sp. nov. 
A rather small fan-shaped plant, the upper layers of which are 
dead and much cracked and roughened while the layers added 
below are smaller each succeeding year. Pileus woody, applan- 
ate, much thicker behind, 8 X 13 X 0.5-5 cm. ; surface uneven, 
radiately rimose, dark brown to black ; margin ferruginous, velvety, 
acute, becoming black, spreading and lobed, projecting 1-2 cm. 
beyond the new layers: context woody, fulvous, o.5-I cm. 
thick ; tubes stratified, separated by thin annual layers of con- 
text, 0.2-0.7-cm. long each season, 7 to a mm., fulvous within, 
mouths rounded or polygonal, hoary when young, edges thin, 
acute, entire: spores globose or subglobose, thin-walled, smooth, 
pale golden-yellow (probably darker in age), 5~7 pv. 
Collected by Earle, at Port Antonio, Jamaica, November, 1902, 
onan old stump of Pszdium. The spores of the present season 
appear immature. 
SPECIES INQUIRENDAE 
In this list is included not only species at present unknown, 
but also plants described by foreign authors which have not been 
seen or have been as yet only slightly studied by the writer. 
Polyporus extensus Lév., P. elatus Lév., P. Nicaraguensis B. & C., 
P. sarcitus Fries, P. sclerodes Berk., P. scleromyces B. & C., P. 
sordidus Leév., P. subflexibilis B. & C., P. Baccharidis Pat., Gano- 
derma Mexicanum Pat., Xanthochrous igniarioides Pat. 
New York CIty. 
