62 NORTH AMERICAN FLORA [Vorume 9 
on drying, the center depressed and avellaneous ; margin irregularly undulate, lobed, either 
defiexed or recurved, very thin, not ciliate: context white, fleshy, tough, homogeneous, 
2-5 mm. thick ; tubes milk-white, 2-3 mm. long, 5 to 6 to a mm., cylindrical, edges thin, 
entire to lacerate: spores ellipsoidal, hyaline, smooth, 36-7: stipe short, central, 
solid, woody, equal or tapering downward, smooth, pruinose, white above, fuliginous 
below, 3 cm. long, 2-3 cm. thick. 
TYPE LOCALITY: Cornwall, Connecticut, on buried decaying roots. 
Hapitat: Dead roots of deciduous trees. . 
DISTRIBUTION : Connecticut and New York. 
30. Polyporus elegans (Bull.) Fries, Epicr. Myc. 440. 1838. 
Boletus elegans Bull. Herb. Fr. pi. 46. 1780. 
Boletus nummularis Bull. Herb. Fr. pl. 124. 1782. 
Pileus flabelliform to subcircular, scarcely depressed behind, convex or nearly plane, 
2-6 X 3-10 X 0.2-1 cm.; surface distinctly radiate-striate, pruinose when young, becoming 
glabrous and pale-ochraceous at maturity ; margin thin, at first inflexed, ofteri becoming 
wavy or much lobed and folded with age, not ciliate: context white or pallid, corky, homo- 
geneous, 1-5 mm. thick; tubes pale-avellaneous, 1-3 mm. long, cylindrical, mouths angu- 
lar to subcircular, entire, at first white, glistening, pale-umbrinous with age, 4-5 toa mm., 
edges thin, entire: spores oblong, smooth, hyaline, 7-8 X 3-3.5 mu: stipe excentric or 
lateral, rarely central, woody, smooth, pallid above, abruptly black and scutate below, 14 
em. long, 2-5 mm. thick. 
TYPE LOCALITY: France. 
HapitTaT: Fallen branches and trunks of various deciduous trees. 
DISTRIBUTION : Canada to Virginia and west to California; also throughout Europe. 
ILLUSTRATIONS: Bull. Herb. Fr. foc. ci/.; Pat. Tab. Fung. f. 137. 
ExsiccaTr: Ellis & Ev. N. Am. Fungi 2303 ; Underw. & Cook, Illust. Fungi 7. 
31. Polyporus subelegans Murrill, sp. nov. 
Pileus flabelliform, convex, often attenuate at the base, 1-2 >1.5-2.5 0.1 cm.; sur- 
face delicately radiate-striate, glabrous, isabelline to pale-umbrinous when dry; margin 
acute, entire, undulate to lobed, rarely inflexed: context pallid, corky, 0.5 mm. thick ; 
tubes pale-umbrinous, 1 mm. long, cylindrical, mouths whité when young, perfectly 
circular, exceedingly minute, 10 toa mm., edges thick, entire: spores smooth, hyaline: 
stipe short, lateral, solid, woody, scutate at the base, black, pruinose, rugose, 2-5 mm. long, 
2-3 mm. thick. ; 
Type collected on dead sticks in woods at Mooretown, Jamaica, November 22, 1902, F. S. 
Earle 542. 
DISTRIBUTION : Jamaica; Nicaragua. 
32. Polyporus diabolicus Berk. Jour. Bot. & Kew Misc. 8: 174. 1856. 
Polyporus rufo-atratus Berk. Jour. Bot. & Kew Misc. 8: 174. 1856. (Type from Panuré, Brazil.) 
Polyporus vernicosus Berk. Jour. Bot. & Kew Misc. 8:175. 1856. (Type from Panuré, Brazil.) 
Pileus circular, umbilicate, convex, 3-10 X 0.2-0.4 cm. ; surface bright-bay to almost 
black, usually radiate-striate, pruinose to glabrous, sometimes proliferous; margin rather 
thin, entire, concolorous to crenate or lobed, at first straight, becoming slightly deflexed: 
context white or pallid, corky, 1-3 mm. thick ; tubes white to umbrinous, 1-2 mm. long, 
mouths minute, circular, 4-6 to a mm., edges thick, entire: spores smooth, hyaline: stipe 
central, solid, woody, equal or slightly tapering upward, concolorous, glabrous, 3-8 cm. 
long, 3-10 mm. thick. 
TYPE LOCALITY: Panuré, Brazil. 
Hapsirat: Dead trunks. . 
DISTRIBUTION : Central America and South America. 
33. Polyporus fissus Berk. Lond. Jour. Bot. 6: 318. 1847. 
Polyporus trachypus Berk. & Mont.; Mont. Syll. Crypt. 154. 1856. 
Pileus flabelliform to subcircular, often depressed at the disc or behind, convex, very 
variable in size, 5-15 X 7-20 X 0.3-1 cm.; surface glabrous, minutely radiate-striate, bay or 
fuliginous, rugose at the disc; margin thin, fertile, wavy or lobed, often splitting with 
