Part i, 1907] POLYPORACEAE 61 
and umbilicate when young, soon becoming flabelliform and explanate ; surface ochraceous 
to fulvous, covered with broad, appressed, darker scales, which are very close together in 
young specimens; margin involute, thin, entire: context fleshy-tough, juicy, milk-white, 
very thick, odor strong; tubes decurrent, white or pale-yellowish, very short, mouths large, 
alveolar, 1 mm. or more in diameter, edges thin at maturity, toothed at an early age, becom- 
ing lacerate: spores broadly ovoid, smooth, hyaline, 5X12: stipe excentric to lateral, 
obese, reticulate above, clothed at the base with short, dark-brown or black, velvety tomen- 
tum, often reduced, variable in length. 
TYPE LocaLity: Carniola. 
HasitaT: Injured trunks of elm, maple, horse-chestnut and various other deciduous trees, 
especially those planted for shade. 
DISTRIBUTION : Ontario, Connecticut, and New York; very abundant throughout Europe. 
ILLUSTRATIONS: Schaeff. Fung. Bavar. 3: pls. 101, 102. 1774; Paulet, Traité Champ Joc. cit. ; 
Sow. Engl. Fungi f/. 266 ; Bull. Herb. Fr. £1. 19, 114. 
26. Polyporus maculosus Murrill, Bull. Torrey Club 31: 41. 1904. 
A small tough plant nearly related to P. fssus, but minutely tomentose, with rounded, 
nearly glabrous, spots of a reddish-brown color. Pileus irregularly orbicular, deeply 
depressed, 3-3.5 > 0.1-0.2 cm.; surface finely and densely tomentose, radiately striate, 
drab-colored, ornamented with several light-bay or chestnut spots mostly situated about 
midway between the center and the margin, which is very thin, striate, irregular and some- 
what fissured but entirely devoid of teeth or cilia: context 0.5-1.5 mm. thick, tough to 
corky, pallid ; tubes 0.2-0.4 mm. long, 6-7 to a mm., decurrent, pallid or yellowish, sub- 
cylindrical, edges entire: spores ovoid, hyaline, smooth, 3X4, immature in the speci- 
mens: stipe central, solid, woody, tapering upward, chestnut-black at the base, with 
blotches of light-yellow, uneven, subglabrous, 2 cm. long, 2-4 mm. thick. 
TYPE LOCALITY: Central America. 
HABITAT : Dead wood. 
DISTRIBUTION : Known only from the type locality. 
27. Polyporus Wrightii Murrill, sp nov. 
Pileus circular, convex-plane, umbilicate, 3-4 0.1 cm.; surface delicately radiate- 
striate, glabrous, isabelline when dry; margin thin, acute, bay, irregularly undulate or 
Aobed, slightly incurved, not ciliate: context membranous, pallid, corky, homogeneous, 
less than 0.5 mm. thick; tubes decurrent, umbrinous when dry, 0.5-1 mm. long, 2-3 toa 
mm., mouths irregular, angular, very variable in size, edges thin, entire, slightly toothed 
with age: spores smooth, hyaline: stipe short, central, solid, woody, equal or slightly 
enlarged at the base, pulverulent, black, 5-7 mm. long, 2-3 mm. thick. 
Type collected on dead wood in Cuba, Charles Wrighi 201. 
DISTRIBUTION : Known only from the type locality. 
28. Polyporus marasmioides (Pat.) Murrill. 
Melanopus marasmioides Pat. Bull. Soc. Myc. Fr. 18: 173. 1902. 
Pileus circular, convex-plane, deeply umbilicate, sometimes entirely aborted, 1-5 < 0.1 
em.; surface glabrous, ochraceous, obscurely striate near the margin, marked with a 
shallow circular peripheral furrow; margin straight, yellowish, translucent, puberulent, 
denticulate, sterile: context pallid, corky, homogeneous; tubes large, shallow, radiating, 
angular, 1 mm. or more in diameter, edges thick, hard, entire, becoming denticulate or 
lacerate: spores elungate-ovoid, hyaline, guttulate, 104: stipe central, cylindrical, 
brownish-black, white within, tenacious, woody, velvety-hispid, 1-15 cm. long. 
TYPE LOCALITY: On decaying seeds of Meliosma, Guadeloupe. 
HaBITAT: Decaying seeds or dead trunks. 
DISTRIBUTION : Guadeloupe and Martinique. 
29. Polyporus Underwoodii Murrill; Peck, Bull. N. Y. State 
Mus. 105: 27. 1906. 
Pileus varying from convex to deeply concave, 12-25 cm. in diameter, averaging 0.5 
cm. in thickness; surface obscurely concentrically zonate, milk-white, pruinose, cremeous 
