Parr 1, 1907] POLYPORACEAE 23 
22. Coriolus Lloydii Murrill, sp. nov. 
Pileus rather thin, laterally connate, rigid, tough, cuneate to flabelliform, applanate, 
tubercular-sessile, 2-3 X 3-4 X 0.2-0.4 cm.; surface white to isabelline, scabrous, somewhat 
tugose, marked with a few narrow, indistinct, pale-latericeous zones; margin thin, fertile, 
irregular, lobed: context punky-fibrous, white, 1.5-2 mm. thick; tubes 1-1.5 mm. long, 
white within, mouths angular, subglistening, 4 toa mm., edges thin, firm, dentate, white 
to isabelline : spores globose, smooth, hyaline, 2 «; hyphae 5 x. 
Type collected in Ohio, on dead wood, C. G. Lloyd. 
DISTRIBUTION : Known only from the type locality. 
23. Coriolus leiodermus (Mont.) Murrill. 
? Polystictus actinobolus Mont. Syll. Crypt. 166. 1856. (Type from Guiana.) 
Polyporus letodermus Mont. Syll. Crypt. 168. 1856. 
Pileus thin, tough, leathery, flexible, sessile, dimidiate, often decurrent, conchate, 
3-4 X 4-6 X 0.1-0.3 cm.; surface multizonate, slightly silky, becoming glabrous, minutely 
furrowed radiately, isabelline-fulvous; margin thin, entire, pallid: context white to pallid, 
punky-fibrous, 0.5-1.5 mm. thick; tubes 1-1.5 mm. long, pallid within, mouths circular to 
angular, very regular, variable in size, 3-6 to amm., edges thin, firm, entire to dentate, 
pallid to umbrinous-fulvous, glistening: spores globose, smooth, hyaline, 34; hyphae 
hyaline, 3.54 in diameter. 
TYPE LOCALITY: Guiana. 
HasitTaT: Dead wood. 
DISTRIBUTION : Nicaragua ; also in Guiana. 
24. Coriolus concentricus Murrill, sp. nov. 
Pileus thin, firm, but slightly flexible, flabelliform, conchate, depressed behind, 
attached by a narrow base, 46 0.2-0.4 cm. ; surface glabrous, indistinctly zonate, sub- 
shining, white to pale-isabelline, latericeous behind, the zones tinged with pale-latericeous ; 
margin very thin, lobed, concolorous, glabrous: context white, fibrous, 1 mm. thick ; tubes 
slender, 2-3 mm. long, white within, mouths regular, angular, 3 to a mm., edges thin, 
firm, denticulate, white to pale-isabelline in dried specimens: spores globose, smooth, 
hyaline, 3“; hyphae 5z. 
Type collected at London, Ontario, on dead wood, /. Dearness 700. 
DISTRIBUTION : Known only from the type locality. 
25. Coriolus Drummondii (Klotzsch) Pat. Tax. Hymén. 94. 1900. 
Polyporus Drummondti Klotzsch, Linnaea 8: 487. 1833. 
Pileus very thin, slightly flexible, but rather brittle, sessile, laterally connate, some- 
what imbricate, spatulate or flabelliform, 1-2 & 1-1.5 x 0.05-0.1 cm.; surface longitudinally 
fibrose-striate, rough, nearly glabrous, pallid to light-bay, subzonate; margin very thin, 
fimbriate, irregular: context thin, membranous, white to pallid; tubes very short, less than 
1 mm. thick, mouths angular, radially elongate, 34 toa mm., pallid to discolored, edges 
thin, flaccid, dentate to lacerate: spores not examined. 
TYPE LOCALITY : New Orleans, Louisiana. 
HasitTatT: Dead trunks. . 
DISTRIBUTION: Known only from the type locality. 
26. Coriolus membranaceus (Sw.) Pat. Tax. Hymén. 94. 1900. 
Boletus membranaceus Sw. Prodr. 148. 1788.— Sw. Fl. Ind. Occ. 1922. 1806. 
Polyporus membranaceus Fries, Syst. Myc. 1: 370. 1821.— Berk. Ann. Mag. Nat. Hist. 10: 378. 
Polystiolus semiplicatus Ellis & Macbr. Bull. Lab. Nat. Hist. Univ. Iowa 3?: 192. 1896. (Type 
from Nicaragua.) 
Pileus very thin, densely imbricate, sessile, dimidiate or flabelliform, conchate, 2-4 
3-6 X 0.1-0.2 cm. ; surface multizonate, finely radiate-furrowed, short-tomentose to gla- 
brous and subshining, white or pallid with slightly darker zones; margin very thin, undu- 
late or lobed, usually splitting with age: context white, fibrous, 0.5-1.5 mm. thick; tubes 
very short, less than 1 mm., white to discolored within, mouths angular, 4-6 to 4 mm., 
