116 NORTH AMERICAN FLORA [VoLUME 9 
1. Amauroderma coffeatum (Berk.) Murrill, Bull. Torrey 
Club 32: 367. 1905. 
Polyporus coffeatus Berk. Ann. Nat. Hist. 3: 385. 1839. 
Cespitose; pileus solid, corky, suborbicular, oblique, 18-20 cm. broad; surface smooth, 
thinly encrusted, opaque, reddish-brown; margin pallid to brown, obtuse: context corky, 
pallid, pale-isabelline in dried specimens; tubes decurrent, pallid, mouths subcireular, 5 
toa mm., darker than the context, edges obtuse, entire: spores not examined : stipe lat- 
erally attached, elongate, cylindrical, subequal, obscure-brown, mixed with coffee color, 
pruinose, pallid and soft-corky, becoming fistulose, 3.5 cm. long, 1 cm. thick. 
TYPE LOCALITY: St. Vincent, West Indies. 
HABITAT: Decaying trunks. : 
DISTRIBUTION : Known only from the type locality. 
2. Amauroderma regulicolor (Cooke) Murrill, Bull. Torrey 
Club 32: 367. 1905. 
Fomes regulicolor Cooke, Grevillea 15: 21. 1886. 
Pileus simple, rigid, corky, reniform, convex above, 2X 2.5-4 X 0.3-1 cm.; surface 
silky, subzonate, smooth, purplish-fuscous ; margin subacute, more obscure : context fulvous, 
punky, homogeneous, 1-3 mm. thick; tubes not stratified, 3-5 mm. long, grayish-umbrinous 
within, mouths hexagonal at maturity, 8 to a mm., grayish-fuscous, lighter when young, 
edges thin, entire: spores not examined: stipe lateral, ascending, contorted, fuscous, 
slightly tomentose, opaque, 4-8 cm. long, 8-12 mm. thick. 
TYPE LOCALITY: Cuba. . 
HABITAT: Decaying roots of deciduous trees. 
DISTRIBUTION: Cuba. 
3. Amauroderma avellaneum Murrill, sp. nov. 
Pileus woody, rather thick, flabelliform, laterally attached, 6X 6 1 cm.; surface pul- 
verulent to glabrous, very rugose, colliculose behind, slightly sulcate, thinly encrusted, 
opaque, avellaneous with faint reddish-brown zones; margin pallid, acute, lobed, pulveru- 
lent: context corky with horny radiations, pale-isabelline when dry, 3-4 mm. thick ; hy- 
menium free; tubes long and slender, not stratified, 1 cm. long behind, shorter in front, 
white within, mouths circular, 4 to a mm., edges obtuse, entire, white : stipe long, ascend- 
ing, subcylindrical with several short aborted branches, straight, laterally attached, um- 
brinous, opaque, horny-encrusted, firm and nearly white within, 15 cm. long, 1 cm. thick. 
Type collected in Nicaragua, on decayed wood, C. L. Smith. 
DISTRIBUTION: Known only from the type locality. 
4. Amauroderma Chaperi (Pat.) Murrill, Bull. Torrey 
Club 32: 367. 1905. 
Ganoderma Chaperi Pat. Jour. de Bot. 4: 197. 1890. 
Pileus rigid, corky to woody, regularly orbicular, plane, slightly depressed at the center, 
881.5 cm.; surface opaque, brownish-black, fulvous-fasciate, abundantly shallowly 
concentrically sulcate, with fragile crust; margin plicate-rugulose, obtuse, fertile, pallid: 
context punky, pale-fulvous, homogeneous, 4-5 mm. thick; hymenium free; tubes not 
stratified, avellaneous-isabelline, 8-12 mm. long, mouths circular or angular, regular, 
minute, 4-5 toa mm., edges thick, entire, avellaneous: spores exactly spherical, fulvous, 
echinulate : stipe central, cylindrical, equal, very long, probably rooting, opaque, brownish- 
cinereous, pale-fulvous and stuffed within, 15 cm. long, 8 mm. thick. 
TYPE LOCALITY: Cuba. 
HasItTaT: Dead wood. 
DISTRIBUTION: Known only from the type locality. 
5. Amauroderma flaviporum Murrill, sp. nov. 
Pileus hard, rigid, circular, depressed at the center, concave below, 8-12 8-121 
em.; surface opaque, velvety, umbrinous with numerous bay-black zones, radiate-rugose, 
